Merge tag 'v3.3-rc7' into sched/core

Merge reason: merge back final fixes, prepare for the merge window.

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

98 files changed, 505 insertions, 207 deletions

diff --git a/arch/alpha/include/asm/futex.h b/arch/alpha/include/asm/futex.h
index e8a761aee088..f939794363ac 100644
--- a/arch/alpha/include/asm/futex.h
+++ b/arch/alpha/include/asm/futex.h
@@ -108,7 +108,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
         "       lda     $31,3b-2b(%0)\n"
         "       .previous\n"
         :       "+r"(ret), "=&r"(prev), "=&r"(cmp)
-        :       "r"(uaddr), "r"((long)oldval), "r"(newval)
+        :       "r"(uaddr), "r"((long)(int)oldval), "r"(newval)
         :       "memory");
 
         *uval = prev;
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index a48aecc17eac..dfb0312f4e73 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1280,7 +1280,7 @@ config ARM_ERRATA_743622
         depends on CPU_V7
         help
           This option enables the workaround for the 743622 Cortex-A9
-          (r2p0..r2p2) erratum. Under very rare conditions, a faulty
+          (r2p*) erratum. Under very rare conditions, a faulty
           optimisation in the Cortex-A9 Store Buffer may lead to data
           corruption. This workaround sets a specific bit in the diagnostic
           register of the Cortex-A9 which disables the Store Buffer
diff --git a/arch/arm/boot/.gitignore b/arch/arm/boot/.gitignore
index ce1c5ff746e7..3c79f85975aa 100644
--- a/arch/arm/boot/.gitignore
+++ b/arch/arm/boot/.gitignore
@@ -3,3 +3,4 @@ zImage
 xipImage
 bootpImage
 uImage
+*.dtb
diff --git a/arch/arm/include/asm/pmu.h b/arch/arm/include/asm/pmu.h
index b5a5be2536c1..90114faa9f3c 100644
--- a/arch/arm/include/asm/pmu.h
+++ b/arch/arm/include/asm/pmu.h
@@ -134,7 +134,7 @@ int __init armpmu_register(struct arm_pmu *armpmu, char *name, int type);
 
 u64 armpmu_event_update(struct perf_event *event,
                         struct hw_perf_event *hwc,
-                        int idx, int overflow);
+                        int idx);
 
 int armpmu_event_set_period(struct perf_event *event,
                             struct hw_perf_event *hwc,
diff --git a/arch/arm/kernel/ecard.c b/arch/arm/kernel/ecard.c
index 4dd0edab6a65..1651d4950744 100644
--- a/arch/arm/kernel/ecard.c
+++ b/arch/arm/kernel/ecard.c
@@ -242,6 +242,7 @@ static void ecard_init_pgtables(struct mm_struct *mm)
 
         memcpy(dst_pgd, src_pgd, sizeof(pgd_t) * (EASI_SIZE / PGDIR_SIZE));
 
+        vma.vm_flags = VM_EXEC;
         vma.vm_mm = mm;
 
         flush_tlb_range(&vma, IO_START, IO_START + IO_SIZE);
diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c
index 5bb91bf3d47f..b2abfa18f137 100644
--- a/arch/arm/kernel/perf_event.c
+++ b/arch/arm/kernel/perf_event.c
@@ -180,7 +180,7 @@ armpmu_event_set_period(struct perf_event *event,
 u64
 armpmu_event_update(struct perf_event *event,
                     struct hw_perf_event *hwc,
-                    int idx, int overflow)
+                    int idx)
 {
         struct arm_pmu *armpmu = to_arm_pmu(event->pmu);
         u64 delta, prev_raw_count, new_raw_count;
@@ -193,13 +193,7 @@ again:
                              new_raw_count) != prev_raw_count)
                 goto again;
 
-        new_raw_count &= armpmu->max_period;
-        prev_raw_count &= armpmu->max_period;
-
-        if (overflow)
-                delta = armpmu->max_period - prev_raw_count + new_raw_count + 1;
-        else
-                delta = new_raw_count - prev_raw_count;
+        delta = (new_raw_count - prev_raw_count) & armpmu->max_period;
 
         local64_add(delta, &event->count);
         local64_sub(delta, &hwc->period_left);
@@ -216,7 +210,7 @@ armpmu_read(struct perf_event *event)
         if (hwc->idx < 0)
                 return;
 
-        armpmu_event_update(event, hwc, hwc->idx, 0);
+        armpmu_event_update(event, hwc, hwc->idx);
 }
 
 static void
@@ -232,7 +226,7 @@ armpmu_stop(struct perf_event *event, int flags)
         if (!(hwc->state & PERF_HES_STOPPED)) {
                 armpmu->disable(hwc, hwc->idx);
                 barrier(); /* why? */
-                armpmu_event_update(event, hwc, hwc->idx, 0);
+                armpmu_event_update(event, hwc, hwc->idx);
                 hwc->state |= PERF_HES_STOPPED | PERF_HES_UPTODATE;
         }
 }
@@ -518,7 +512,13 @@ __hw_perf_event_init(struct perf_event *event)
         hwc->config_base            |= (unsigned long)mapping;
 
         if (!hwc->sample_period) {
-                hwc->sample_period  = armpmu->max_period;
+                /*
+                 * For non-sampling runs, limit the sample_period to half
+                 * of the counter width. That way, the new counter value
+                 * is far less likely to overtake the previous one unless
+                 * you have some serious IRQ latency issues.
+                 */
+                hwc->sample_period  = armpmu->max_period >> 1;
                 hwc->last_period    = hwc->sample_period;
                 local64_set(&hwc->period_left, hwc->sample_period);
         }
@@ -680,6 +680,28 @@ static void __init cpu_pmu_init(struct arm_pmu *armpmu)
 }
 
 /*
+ * PMU hardware loses all context when a CPU goes offline.
+ * When a CPU is hotplugged back in, since some hardware registers are
+ * UNKNOWN at reset, the PMU must be explicitly reset to avoid reading
+ * junk values out of them.
+ */
+static int __cpuinit pmu_cpu_notify(struct notifier_block *b,
+                                        unsigned long action, void *hcpu)
+{
+        if ((action & ~CPU_TASKS_FROZEN) != CPU_STARTING)
+                return NOTIFY_DONE;
+
+        if (cpu_pmu && cpu_pmu->reset)
+                cpu_pmu->reset(NULL);
+
+        return NOTIFY_OK;
+}
+
+static struct notifier_block __cpuinitdata pmu_cpu_notifier = {
+        .notifier_call = pmu_cpu_notify,
+};
+
+/*
  * CPU PMU identification and registration.
  */
 static int __init
@@ -730,6 +752,7 @@ init_hw_perf_events(void)
                 pr_info("enabled with %s PMU driver, %d counters available\n",
                         cpu_pmu->name, cpu_pmu->num_events);
                 cpu_pmu_init(cpu_pmu);
+                register_cpu_notifier(&pmu_cpu_notifier);
                 armpmu_register(cpu_pmu, "cpu", PERF_TYPE_RAW);
         } else {
                 pr_info("no hardware support available\n");
diff --git a/arch/arm/kernel/perf_event_v6.c b/arch/arm/kernel/perf_event_v6.c
index 533be9930ec2..b78af0cc6ef3 100644
--- a/arch/arm/kernel/perf_event_v6.c
+++ b/arch/arm/kernel/perf_event_v6.c
@@ -467,23 +467,6 @@ armv6pmu_enable_event(struct hw_perf_event *hwc,
         raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
 }
 
-static int counter_is_active(unsigned long pmcr, int idx)
-{
-        unsigned long mask = 0;
-        if (idx == ARMV6_CYCLE_COUNTER)
-                mask = ARMV6_PMCR_CCOUNT_IEN;
-        else if (idx == ARMV6_COUNTER0)
-                mask = ARMV6_PMCR_COUNT0_IEN;
-        else if (idx == ARMV6_COUNTER1)
-                mask = ARMV6_PMCR_COUNT1_IEN;
-
-        if (mask)
-                return pmcr & mask;
-
-        WARN_ONCE(1, "invalid counter number (%d)\n", idx);
-        return 0;
-}
-
 static irqreturn_t
 armv6pmu_handle_irq(int irq_num,
                     void *dev)
@@ -513,7 +496,8 @@ armv6pmu_handle_irq(int irq_num,
                 struct perf_event *event = cpuc->events[idx];
                 struct hw_perf_event *hwc;
 
-                if (!counter_is_active(pmcr, idx))
+                /* Ignore if we don't have an event. */
+                if (!event)
                         continue;
 
                 /*
@@ -524,7 +508,7 @@ armv6pmu_handle_irq(int irq_num,
                         continue;
 
                 hwc = &event->hw;
-                armpmu_event_update(event, hwc, idx, 1);
+                armpmu_event_update(event, hwc, idx);
                 data.period = event->hw.last_period;
                 if (!armpmu_event_set_period(event, hwc, idx))
                         continue;
diff --git a/arch/arm/kernel/perf_event_v7.c b/arch/arm/kernel/perf_event_v7.c
index 6933244c68f9..4d7095af2ab3 100644
--- a/arch/arm/kernel/perf_event_v7.c
+++ b/arch/arm/kernel/perf_event_v7.c
@@ -809,6 +809,11 @@ static inline int armv7_pmnc_disable_intens(int idx)
 
         counter = ARMV7_IDX_TO_COUNTER(idx);
         asm volatile("mcr p15, 0, %0, c9, c14, 2" : : "r" (BIT(counter)));
+        isb();
+        /* Clear the overflow flag in case an interrupt is pending. */
+        asm volatile("mcr p15, 0, %0, c9, c12, 3" : : "r" (BIT(counter)));
+        isb();
+
         return idx;
 }
 
@@ -955,6 +960,10 @@ static irqreturn_t armv7pmu_handle_irq(int irq_num, void *dev)
                 struct perf_event *event = cpuc->events[idx];
                 struct hw_perf_event *hwc;
 
+                /* Ignore if we don't have an event. */
+                if (!event)
+                        continue;
+
                 /*
                  * We have a single interrupt for all counters. Check that
                  * each counter has overflowed before we process it.
@@ -963,7 +972,7 @@ static irqreturn_t armv7pmu_handle_irq(int irq_num, void *dev)
                         continue;
 
                 hwc = &event->hw;
-                armpmu_event_update(event, hwc, idx, 1);
+                armpmu_event_update(event, hwc, idx);
                 data.period = event->hw.last_period;
                 if (!armpmu_event_set_period(event, hwc, idx))
                         continue;
diff --git a/arch/arm/kernel/perf_event_xscale.c b/arch/arm/kernel/perf_event_xscale.c
index 3b99d8269829..71a21e6712f5 100644
--- a/arch/arm/kernel/perf_event_xscale.c
+++ b/arch/arm/kernel/perf_event_xscale.c
@@ -255,11 +255,14 @@ xscale1pmu_handle_irq(int irq_num, void *dev)
                 struct perf_event *event = cpuc->events[idx];
                 struct hw_perf_event *hwc;
 
+                if (!event)
+                        continue;
+
                 if (!xscale1_pmnc_counter_has_overflowed(pmnc, idx))
                         continue;
 
                 hwc = &event->hw;
-                armpmu_event_update(event, hwc, idx, 1);
+                armpmu_event_update(event, hwc, idx);
                 data.period = event->hw.last_period;
                 if (!armpmu_event_set_period(event, hwc, idx))
                         continue;
@@ -592,11 +595,14 @@ xscale2pmu_handle_irq(int irq_num, void *dev)
                 struct perf_event *event = cpuc->events[idx];
                 struct hw_perf_event *hwc;
 
-                if (!xscale2_pmnc_counter_has_overflowed(pmnc, idx))
+                if (!event)
+                        continue;
+
+                if (!xscale2_pmnc_counter_has_overflowed(of_flags, idx))
                         continue;
 
                 hwc = &event->hw;
-                armpmu_event_update(event, hwc, idx, 1);
+                armpmu_event_update(event, hwc, idx);
                 data.period = event->hw.last_period;
                 if (!armpmu_event_set_period(event, hwc, idx))
                         continue;
@@ -663,7 +669,7 @@ xscale2pmu_enable_event(struct hw_perf_event *hwc, int idx)
 static void
 xscale2pmu_disable_event(struct hw_perf_event *hwc, int idx)
 {
-        unsigned long flags, ien, evtsel;
+        unsigned long flags, ien, evtsel, of_flags;
         struct pmu_hw_events *events = cpu_pmu->get_hw_events();
 
         ien = xscale2pmu_read_int_enable();
@@ -672,26 +678,31 @@ xscale2pmu_disable_event(struct hw_perf_event *hwc, int idx)
         switch (idx) {
         case XSCALE_CYCLE_COUNTER:
                 ien &= ~XSCALE2_CCOUNT_INT_EN;
+                of_flags = XSCALE2_CCOUNT_OVERFLOW;
                 break;
         case XSCALE_COUNTER0:
                 ien &= ~XSCALE2_COUNT0_INT_EN;
                 evtsel &= ~XSCALE2_COUNT0_EVT_MASK;
                 evtsel |= XSCALE_PERFCTR_UNUSED << XSCALE2_COUNT0_EVT_SHFT;
+                of_flags = XSCALE2_COUNT0_OVERFLOW;
                 break;
         case XSCALE_COUNTER1:
                 ien &= ~XSCALE2_COUNT1_INT_EN;
                 evtsel &= ~XSCALE2_COUNT1_EVT_MASK;
                 evtsel |= XSCALE_PERFCTR_UNUSED << XSCALE2_COUNT1_EVT_SHFT;
+                of_flags = XSCALE2_COUNT1_OVERFLOW;
                 break;
         case XSCALE_COUNTER2:
                 ien &= ~XSCALE2_COUNT2_INT_EN;
                 evtsel &= ~XSCALE2_COUNT2_EVT_MASK;
                 evtsel |= XSCALE_PERFCTR_UNUSED << XSCALE2_COUNT2_EVT_SHFT;
+                of_flags = XSCALE2_COUNT2_OVERFLOW;
                 break;
         case XSCALE_COUNTER3:
                 ien &= ~XSCALE2_COUNT3_INT_EN;
                 evtsel &= ~XSCALE2_COUNT3_EVT_MASK;
                 evtsel |= XSCALE_PERFCTR_UNUSED << XSCALE2_COUNT3_EVT_SHFT;
+                of_flags = XSCALE2_COUNT3_OVERFLOW;
                 break;
         default:
                 WARN_ONCE(1, "invalid counter number (%d)\n", idx);
@@ -701,6 +712,7 @@ xscale2pmu_disable_event(struct hw_perf_event *hwc, int idx)
         raw_spin_lock_irqsave(&events->pmu_lock, flags);
         xscale2pmu_write_event_select(evtsel);
         xscale2pmu_write_int_enable(ien);
+        xscale2pmu_write_overflow_flags(of_flags);
         raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
 }
 
diff --git a/arch/arm/mach-at91/at91sam9g45_devices.c b/arch/arm/mach-at91/at91sam9g45_devices.c
index b7582dd10dc3..96e2adcd5a84 100644
--- a/arch/arm/mach-at91/at91sam9g45_devices.c
+++ b/arch/arm/mach-at91/at91sam9g45_devices.c
@@ -38,10 +38,6 @@
 #if defined(CONFIG_AT_HDMAC) || defined(CONFIG_AT_HDMAC_MODULE)
 static u64 hdmac_dmamask = DMA_BIT_MASK(32);
 
-static struct at_dma_platform_data atdma_pdata = {
-        .nr_channels    = 8,
-};
-
 static struct resource hdmac_resources[] = {
         [0] = {
                 .start  = AT91SAM9G45_BASE_DMA,
@@ -56,12 +52,11 @@ static struct resource hdmac_resources[] = {
 };
 
 static struct platform_device at_hdmac_device = {
-        .name           = "at_hdmac",
+        .name           = "at91sam9g45_dma",
         .id             = -1,
         .dev            = {
                                 .dma_mask               = &hdmac_dmamask,
                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
-                                .platform_data          = &atdma_pdata,
         },
         .resource       = hdmac_resources,
         .num_resources  = ARRAY_SIZE(hdmac_resources),
@@ -69,9 +64,15 @@ static struct platform_device at_hdmac_device = {
 
 void __init at91_add_device_hdmac(void)
 {
-        dma_cap_set(DMA_MEMCPY, atdma_pdata.cap_mask);
-        dma_cap_set(DMA_SLAVE, atdma_pdata.cap_mask);
-        platform_device_register(&at_hdmac_device);
+#if defined(CONFIG_OF)
+        struct device_node *of_node =
+                of_find_node_by_name(NULL, "dma-controller");
+
+        if (of_node)
+                of_node_put(of_node);
+        else
+#endif
+                platform_device_register(&at_hdmac_device);
 }
 #else
 void __init at91_add_device_hdmac(void) {}
diff --git a/arch/arm/mach-at91/at91sam9rl_devices.c b/arch/arm/mach-at91/at91sam9rl_devices.c
index 61908dce9784..9be71c11d0f0 100644
--- a/arch/arm/mach-at91/at91sam9rl_devices.c
+++ b/arch/arm/mach-at91/at91sam9rl_devices.c
@@ -33,10 +33,6 @@
 #if defined(CONFIG_AT_HDMAC) || defined(CONFIG_AT_HDMAC_MODULE)
 static u64 hdmac_dmamask = DMA_BIT_MASK(32);
 
-static struct at_dma_platform_data atdma_pdata = {
-        .nr_channels    = 2,
-};
-
 static struct resource hdmac_resources[] = {
         [0] = {
                 .start  = AT91SAM9RL_BASE_DMA,
@@ -51,12 +47,11 @@ static struct resource hdmac_resources[] = {
 };
 
 static struct platform_device at_hdmac_device = {
-        .name           = "at_hdmac",
+        .name           = "at91sam9rl_dma",
         .id             = -1,
         .dev            = {
                                 .dma_mask               = &hdmac_dmamask,
                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
-                                .platform_data          = &atdma_pdata,
         },
         .resource       = hdmac_resources,
         .num_resources  = ARRAY_SIZE(hdmac_resources),
@@ -64,7 +59,6 @@ static struct platform_device at_hdmac_device = {
 
 void __init at91_add_device_hdmac(void)
 {
-        dma_cap_set(DMA_MEMCPY, atdma_pdata.cap_mask);
         platform_device_register(&at_hdmac_device);
 }
 #else
diff --git a/arch/arm/mach-ep93xx/vision_ep9307.c b/arch/arm/mach-ep93xx/vision_ep9307.c
index d5fb44f16d31..d67d0b4feb6f 100644
--- a/arch/arm/mach-ep93xx/vision_ep9307.c
+++ b/arch/arm/mach-ep93xx/vision_ep9307.c
@@ -34,6 +34,7 @@
 #include <mach/ep93xx_spi.h>
 #include <mach/gpio-ep93xx.h>
 
+#include <asm/hardware/vic.h>
 #include <asm/mach-types.h>
 #include <asm/mach/map.h>
 #include <asm/mach/arch.h>
@@ -361,6 +362,7 @@ MACHINE_START(VISION_EP9307, "Vision Engraving Systems EP9307")
         .atag_offset    = 0x100,
         .map_io         = vision_map_io,
         .init_irq       = ep93xx_init_irq,
+        .handle_irq     = vic_handle_irq,
         .timer          = &ep93xx_timer,
         .init_machine   = vision_init_machine,
         .restart        = ep93xx_restart,
diff --git a/arch/arm/mach-exynos/mach-universal_c210.c b/arch/arm/mach-exynos/mach-universal_c210.c
index 0fc65ffde8ff..38939956c34f 100644
--- a/arch/arm/mach-exynos/mach-universal_c210.c
+++ b/arch/arm/mach-exynos/mach-universal_c210.c
@@ -13,6 +13,7 @@
 #include <linux/i2c.h>
 #include <linux/gpio_keys.h>
 #include <linux/gpio.h>
+#include <linux/interrupt.h>
 #include <linux/fb.h>
 #include <linux/mfd/max8998.h>
 #include <linux/regulator/machine.h>
@@ -595,6 +596,7 @@ static struct mxt_platform_data qt602240_platform_data = {
         .threshold      = 0x28,
         .voltage        = 2800000,              /* 2.8V */
         .orient         = MXT_DIAGONAL,
+        .irqflags       = IRQF_TRIGGER_FALLING,
 };
 
 static struct i2c_board_info i2c3_devs[] __initdata = {
diff --git a/arch/arm/mach-lpc32xx/include/mach/irqs.h b/arch/arm/mach-lpc32xx/include/mach/irqs.h
index 2667f52e3b04..9e3b90df32e1 100644
--- a/arch/arm/mach-lpc32xx/include/mach/irqs.h
+++ b/arch/arm/mach-lpc32xx/include/mach/irqs.h
@@ -61,7 +61,7 @@
  */
 #define IRQ_LPC32XX_JTAG_COMM_TX        LPC32XX_SIC1_IRQ(1)
 #define IRQ_LPC32XX_JTAG_COMM_RX        LPC32XX_SIC1_IRQ(2)
-#define IRQ_LPC32XX_GPI_11              LPC32XX_SIC1_IRQ(4)
+#define IRQ_LPC32XX_GPI_28              LPC32XX_SIC1_IRQ(4)
 #define IRQ_LPC32XX_TS_P                LPC32XX_SIC1_IRQ(6)
 #define IRQ_LPC32XX_TS_IRQ              LPC32XX_SIC1_IRQ(7)
 #define IRQ_LPC32XX_TS_AUX              LPC32XX_SIC1_IRQ(8)
diff --git a/arch/arm/mach-lpc32xx/irq.c b/arch/arm/mach-lpc32xx/irq.c
index 4eae566dfdc7..c74de01ab5b6 100644
--- a/arch/arm/mach-lpc32xx/irq.c
+++ b/arch/arm/mach-lpc32xx/irq.c
@@ -118,6 +118,10 @@ static const struct lpc32xx_event_info lpc32xx_events[NR_IRQS] = {
                 .event_group = &lpc32xx_event_pin_regs,
                 .mask = LPC32XX_CLKPWR_EXTSRC_GPI_06_BIT,
         },
+        [IRQ_LPC32XX_GPI_28] = {
+                .event_group = &lpc32xx_event_pin_regs,
+                .mask = LPC32XX_CLKPWR_EXTSRC_GPI_28_BIT,
+        },
         [IRQ_LPC32XX_GPIO_00] = {
                 .event_group = &lpc32xx_event_int_regs,
                 .mask = LPC32XX_CLKPWR_INTSRC_GPIO_00_BIT,
@@ -305,9 +309,18 @@ static int lpc32xx_irq_wake(struct irq_data *d, unsigned int state)
 
                 if (state)
                         eventreg |= lpc32xx_events[d->irq].mask;
-                else
+                else {
                         eventreg &= ~lpc32xx_events[d->irq].mask;
 
+                        /*
+                         * When disabling the wakeup, clear the latched
+                         * event
+                         */
+                        __raw_writel(lpc32xx_events[d->irq].mask,
+                                lpc32xx_events[d->irq].
+                                event_group->rawstat_reg);
+                }
+
                 __raw_writel(eventreg,
                         lpc32xx_events[d->irq].event_group->enab_reg);
 
@@ -380,13 +393,15 @@ void __init lpc32xx_init_irq(void)
 
         /* Setup SIC1 */
         __raw_writel(0, LPC32XX_INTC_MASK(LPC32XX_SIC1_BASE));
-        __raw_writel(MIC_APR_DEFAULT, LPC32XX_INTC_POLAR(LPC32XX_SIC1_BASE));
-        __raw_writel(MIC_ATR_DEFAULT, LPC32XX_INTC_ACT_TYPE(LPC32XX_SIC1_BASE));
+        __raw_writel(SIC1_APR_DEFAULT, LPC32XX_INTC_POLAR(LPC32XX_SIC1_BASE));
+        __raw_writel(SIC1_ATR_DEFAULT,
+                                LPC32XX_INTC_ACT_TYPE(LPC32XX_SIC1_BASE));
 
         /* Setup SIC2 */
         __raw_writel(0, LPC32XX_INTC_MASK(LPC32XX_SIC2_BASE));
-        __raw_writel(MIC_APR_DEFAULT, LPC32XX_INTC_POLAR(LPC32XX_SIC2_BASE));
-        __raw_writel(MIC_ATR_DEFAULT, LPC32XX_INTC_ACT_TYPE(LPC32XX_SIC2_BASE));
+        __raw_writel(SIC2_APR_DEFAULT, LPC32XX_INTC_POLAR(LPC32XX_SIC2_BASE));
+        __raw_writel(SIC2_ATR_DEFAULT,
+                                LPC32XX_INTC_ACT_TYPE(LPC32XX_SIC2_BASE));
 
         /* Configure supported IRQ's */
         for (i = 0; i < NR_IRQS; i++) {
diff --git a/arch/arm/mach-lpc32xx/serial.c b/arch/arm/mach-lpc32xx/serial.c
index 429cfdbb2b3d..f2735281616a 100644
--- a/arch/arm/mach-lpc32xx/serial.c
+++ b/arch/arm/mach-lpc32xx/serial.c
@@ -88,6 +88,7 @@ struct uartinit {
         char *uart_ck_name;
         u32 ck_mode_mask;
         void __iomem *pdiv_clk_reg;
+        resource_size_t mapbase;
 };
 
 static struct uartinit uartinit_data[] __initdata = {
@@ -97,6 +98,7 @@ static struct uartinit uartinit_data[] __initdata = {
                 .ck_mode_mask =
                         LPC32XX_UART_CLKMODE_LOAD(LPC32XX_UART_CLKMODE_ON, 5),
                 .pdiv_clk_reg = LPC32XX_CLKPWR_UART5_CLK_CTRL,
+                .mapbase = LPC32XX_UART5_BASE,
         },
 #endif
 #ifdef CONFIG_ARCH_LPC32XX_UART3_SELECT
@@ -105,6 +107,7 @@ static struct uartinit uartinit_data[] __initdata = {
                 .ck_mode_mask =
                         LPC32XX_UART_CLKMODE_LOAD(LPC32XX_UART_CLKMODE_ON, 3),
                 .pdiv_clk_reg = LPC32XX_CLKPWR_UART3_CLK_CTRL,
+                .mapbase = LPC32XX_UART3_BASE,
         },
 #endif
 #ifdef CONFIG_ARCH_LPC32XX_UART4_SELECT
@@ -113,6 +116,7 @@ static struct uartinit uartinit_data[] __initdata = {
                 .ck_mode_mask =
                         LPC32XX_UART_CLKMODE_LOAD(LPC32XX_UART_CLKMODE_ON, 4),
                 .pdiv_clk_reg = LPC32XX_CLKPWR_UART4_CLK_CTRL,
+                .mapbase = LPC32XX_UART4_BASE,
         },
 #endif
 #ifdef CONFIG_ARCH_LPC32XX_UART6_SELECT
@@ -121,6 +125,7 @@ static struct uartinit uartinit_data[] __initdata = {
                 .ck_mode_mask =
                         LPC32XX_UART_CLKMODE_LOAD(LPC32XX_UART_CLKMODE_ON, 6),
                 .pdiv_clk_reg = LPC32XX_CLKPWR_UART6_CLK_CTRL,
+                .mapbase = LPC32XX_UART6_BASE,
         },
 #endif
 };
@@ -165,11 +170,24 @@ void __init lpc32xx_serial_init(void)
 
                 /* pre-UART clock divider set to 1 */
                 __raw_writel(0x0101, uartinit_data[i].pdiv_clk_reg);
+
+                /*
+                 * Force a flush of the RX FIFOs to work around a
+                 * HW bug
+                 */
+                puart = uartinit_data[i].mapbase;
+                __raw_writel(0xC1, LPC32XX_UART_IIR_FCR(puart));
+                __raw_writel(0x00, LPC32XX_UART_DLL_FIFO(puart));
+                j = LPC32XX_SUART_FIFO_SIZE;
+                while (j--)
+                        tmp = __raw_readl(
+                                LPC32XX_UART_DLL_FIFO(puart));
+                __raw_writel(0, LPC32XX_UART_IIR_FCR(puart));
         }
 
         /* This needs to be done after all UART clocks are setup */
         __raw_writel(clkmodes, LPC32XX_UARTCTL_CLKMODE);
-        for (i = 0; i < ARRAY_SIZE(uartinit_data) - 1; i++) {
+        for (i = 0; i < ARRAY_SIZE(uartinit_data); i++) {
                 /* Force a flush of the RX FIFOs to work around a HW bug */
                 puart = serial_std_platform_data[i].mapbase;
                 __raw_writel(0xC1, LPC32XX_UART_IIR_FCR(puart));
diff --git a/arch/arm/mach-mmp/aspenite.c b/arch/arm/mach-mmp/aspenite.c
index 17cb76060125..3588a5584153 100644
--- a/arch/arm/mach-mmp/aspenite.c
+++ b/arch/arm/mach-mmp/aspenite.c
@@ -17,7 +17,6 @@
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/nand.h>
 #include <linux/interrupt.h>
-#include <linux/gpio.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
diff --git a/arch/arm/mach-mmp/pxa168.c b/arch/arm/mach-mmp/pxa168.c
index 7bc17eaa12eb..ada1213982b4 100644
--- a/arch/arm/mach-mmp/pxa168.c
+++ b/arch/arm/mach-mmp/pxa168.c
@@ -24,7 +24,6 @@
 #include <mach/dma.h>
 #include <mach/devices.h>
 #include <mach/mfp.h>
-#include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
 #include <mach/pxa168.h>
 
diff --git a/arch/arm/mach-mmp/tavorevb.c b/arch/arm/mach-mmp/tavorevb.c
index 8e3b5af04a57..bc97170125bf 100644
--- a/arch/arm/mach-mmp/tavorevb.c
+++ b/arch/arm/mach-mmp/tavorevb.c
@@ -12,7 +12,6 @@
 #include <linux/kernel.h>
 #include <linux/platform_device.h>
 #include <linux/smc91x.h>
-#include <linux/gpio.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
diff --git a/arch/arm/mach-omap1/board-innovator.c b/arch/arm/mach-omap1/board-innovator.c
index 309369ea6978..be2002f42dea 100644
--- a/arch/arm/mach-omap1/board-innovator.c
+++ b/arch/arm/mach-omap1/board-innovator.c
@@ -416,13 +416,13 @@ static void __init innovator_init(void)
 #ifdef CONFIG_ARCH_OMAP15XX
         if (cpu_is_omap1510()) {
                 omap1_usb_init(&innovator1510_usb_config);
-                innovator_config[1].data = &innovator1510_lcd_config;
+                innovator_config[0].data = &innovator1510_lcd_config;
         }
 #endif
 #ifdef CONFIG_ARCH_OMAP16XX
         if (cpu_is_omap1610()) {
                 omap1_usb_init(&h2_usb_config);
-                innovator_config[1].data = &innovator1610_lcd_config;
+                innovator_config[0].data = &innovator1610_lcd_config;
         }
 #endif
         omap_board_config = innovator_config;
diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index d965da45160e..e20c8ab80b0e 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -364,8 +364,8 @@ config OMAP3_SDRC_AC_TIMING
           going on could result in system crashes;
 
 config OMAP4_ERRATA_I688
-        bool "OMAP4 errata: Async Bridge Corruption (BROKEN)"
-        depends on ARCH_OMAP4 && BROKEN
+        bool "OMAP4 errata: Async Bridge Corruption"
+        depends on ARCH_OMAP4
         select ARCH_HAS_BARRIERS
         help
           If a data is stalled inside asynchronous bridge because of back
diff --git a/arch/arm/mach-omap2/board-n8x0.c b/arch/arm/mach-omap2/board-n8x0.c
index 42a4d11fad23..672262717601 100644
--- a/arch/arm/mach-omap2/board-n8x0.c
+++ b/arch/arm/mach-omap2/board-n8x0.c
@@ -371,7 +371,11 @@ static void n8x0_mmc_callback(void *data, u8 card_mask)
         else
                 *openp = 0;
 
+#ifdef CONFIG_MMC_OMAP
         omap_mmc_notify_cover_event(mmc_device, index, *openp);
+#else
+        pr_warn("MMC: notify cover event not available\n");
+#endif
 }
 
 static int n8x0_mmc_late_init(struct device *dev)
diff --git a/arch/arm/mach-omap2/board-omap3evm.c b/arch/arm/mach-omap2/board-omap3evm.c
index c775bead1497..c877236a8442 100644
--- a/arch/arm/mach-omap2/board-omap3evm.c
+++ b/arch/arm/mach-omap2/board-omap3evm.c
@@ -381,7 +381,7 @@ static int omap3evm_twl_gpio_setup(struct device *dev,
         gpio_request_one(gpio + 7, GPIOF_OUT_INIT_LOW, "EN_DVI");
 
         /* TWL4030_GPIO_MAX + 1 == ledB (out, active low LED) */
-        gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
+        gpio_leds[0].gpio = gpio + TWL4030_GPIO_MAX + 1;
 
         platform_device_register(&leds_gpio);
 
diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h
index febffde2ff10..7e9338e8d684 100644
--- a/arch/arm/mach-omap2/common.h
+++ b/arch/arm/mach-omap2/common.h
@@ -132,6 +132,7 @@ void omap3_map_io(void);
 void am33xx_map_io(void);
 void omap4_map_io(void);
 void ti81xx_map_io(void);
+void omap_barriers_init(void);
 
 /**
  * omap_test_timeout - busy-loop, testing a condition
diff --git a/arch/arm/mach-omap2/cpuidle44xx.c b/arch/arm/mach-omap2/cpuidle44xx.c
index cfdbb86bc84e..72e018b9b260 100644
--- a/arch/arm/mach-omap2/cpuidle44xx.c
+++ b/arch/arm/mach-omap2/cpuidle44xx.c
@@ -65,7 +65,6 @@ static int omap4_enter_idle(struct cpuidle_device *dev,
         struct timespec ts_preidle, ts_postidle, ts_idle;
         u32 cpu1_state;
         int idle_time;
-        int new_state_idx;
         int cpu_id = smp_processor_id();
 
         /* Used to keep track of the total time in idle */
@@ -84,8 +83,8 @@ static int omap4_enter_idle(struct cpuidle_device *dev,
          */
         cpu1_state = pwrdm_read_pwrst(cpu1_pd);
         if (cpu1_state != PWRDM_POWER_OFF) {
-                new_state_idx = drv->safe_state_index;
-                cx = cpuidle_get_statedata(&dev->states_usage[new_state_idx]);
+                index = drv->safe_state_index;
+                cx = cpuidle_get_statedata(&dev->states_usage[index]);
         }
 
         if (index > 0)
diff --git a/arch/arm/mach-omap2/gpmc-smsc911x.c b/arch/arm/mach-omap2/gpmc-smsc911x.c
index 997033129d26..bbb870c04a5e 100644
--- a/arch/arm/mach-omap2/gpmc-smsc911x.c
+++ b/arch/arm/mach-omap2/gpmc-smsc911x.c
@@ -19,6 +19,8 @@
 #include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/smsc911x.h>
+#include <linux/regulator/fixed.h>
+#include <linux/regulator/machine.h>
 
 #include <plat/board.h>
 #include <plat/gpmc.h>
@@ -42,6 +44,50 @@ static struct smsc911x_platform_config gpmc_smsc911x_config = {
         .flags          = SMSC911X_USE_16BIT,
 };
 
+static struct regulator_consumer_supply gpmc_smsc911x_supply[] = {
+        REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
+        REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
+};
+
+/* Generic regulator definition to satisfy smsc911x */
+static struct regulator_init_data gpmc_smsc911x_reg_init_data = {
+        .constraints = {
+                .min_uV                 = 3300000,
+                .max_uV                 = 3300000,
+                .valid_modes_mask       = REGULATOR_MODE_NORMAL
+                                        | REGULATOR_MODE_STANDBY,
+                .valid_ops_mask         = REGULATOR_CHANGE_MODE
+                                        | REGULATOR_CHANGE_STATUS,
+        },
+        .num_consumer_supplies  = ARRAY_SIZE(gpmc_smsc911x_supply),
+        .consumer_supplies      = gpmc_smsc911x_supply,
+};
+
+static struct fixed_voltage_config gpmc_smsc911x_fixed_reg_data = {
+        .supply_name            = "gpmc_smsc911x",
+        .microvolts             = 3300000,
+        .gpio                   = -EINVAL,
+        .startup_delay          = 0,
+        .enable_high            = 0,
+        .enabled_at_boot        = 1,
+        .init_data              = &gpmc_smsc911x_reg_init_data,
+};
+
+/*
+ * Platform device id of 42 is a temporary fix to avoid conflicts
+ * with other reg-fixed-voltage devices. The real fix should
+ * involve the driver core providing a way of dynamically
+ * assigning a unique id on registration for platform devices
+ * in the same name space.
+ */
+static struct platform_device gpmc_smsc911x_regulator = {
+        .name           = "reg-fixed-voltage",
+        .id             = 42,
+        .dev = {
+                .platform_data  = &gpmc_smsc911x_fixed_reg_data,
+        },
+};
+
 /*
  * Initialize smsc911x device connected to the GPMC. Note that we
  * assume that pin multiplexing is done in the board-*.c file,
@@ -55,6 +101,12 @@ void __init gpmc_smsc911x_init(struct omap_smsc911x_platform_data *board_data)
 
         gpmc_cfg = board_data;
 
+        ret = platform_device_register(&gpmc_smsc911x_regulator);
+        if (ret < 0) {
+                pr_err("Unable to register smsc911x regulators: %d\n", ret);
+                return;
+        }
+
         if (gpmc_cs_request(gpmc_cfg->cs, SZ_16M, &cs_mem_base) < 0) {
                 pr_err("Failed to request GPMC mem region\n");
                 return;
diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c
index b40c28895298..19dd1657245c 100644
--- a/arch/arm/mach-omap2/hsmmc.c
+++ b/arch/arm/mach-omap2/hsmmc.c
@@ -428,6 +428,7 @@ static int omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c,
         return 0;
 }
 
+static int omap_hsmmc_done;
 #define MAX_OMAP_MMC_HWMOD_NAME_LEN             16
 
 void omap_init_hsmmc(struct omap2_hsmmc_info *hsmmcinfo, int ctrl_nr)
@@ -491,6 +492,11 @@ void omap2_hsmmc_init(struct omap2_hsmmc_info *controllers)
 {
         u32 reg;
 
+        if (omap_hsmmc_done)
+                return;
+
+        omap_hsmmc_done = 1;
+
         if (!cpu_is_omap44xx()) {
                 if (cpu_is_omap2430()) {
                         control_pbias_offset = OMAP243X_CONTROL_PBIAS_LITE;
diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c
index 6c5826605eae..719ee423abe2 100644
--- a/arch/arm/mach-omap2/id.c
+++ b/arch/arm/mach-omap2/id.c
@@ -343,6 +343,7 @@ static void __init omap3_check_revision(const char **cpu_rev)
         case 0xb944:
                 omap_revision = AM335X_REV_ES1_0;
                 *cpu_rev = "1.0";
+                break;
         case 0xb8f2:
                 switch (rev) {
                 case 0:
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index eb50c29fb644..fb11b44fbdec 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -307,6 +307,7 @@ void __init omapam33xx_map_common_io(void)
 void __init omap44xx_map_common_io(void)
 {
         iotable_init(omap44xx_io_desc, ARRAY_SIZE(omap44xx_io_desc));
+        omap_barriers_init();
 }
 #endif
 
diff --git a/arch/arm/mach-omap2/mailbox.c b/arch/arm/mach-omap2/mailbox.c
index a6db1e4f7b6e..415a6f1cf419 100644
--- a/arch/arm/mach-omap2/mailbox.c
+++ b/arch/arm/mach-omap2/mailbox.c
@@ -281,8 +281,16 @@ static struct omap_mbox mbox_iva_info = {
         .ops    = &omap2_mbox_ops,
         .priv   = &omap2_mbox_iva_priv,
 };
+#endif
 
-struct omap_mbox *omap2_mboxes[] = { &mbox_dsp_info, &mbox_iva_info, NULL };
+#ifdef CONFIG_ARCH_OMAP2
+struct omap_mbox *omap2_mboxes[] = {
+        &mbox_dsp_info,
+#ifdef CONFIG_SOC_OMAP2420
+        &mbox_iva_info,
+#endif
+        NULL
+};
 #endif
 
 #if defined(CONFIG_ARCH_OMAP4)
@@ -412,8 +420,7 @@ static void __exit omap2_mbox_exit(void)
         platform_driver_unregister(&omap2_mbox_driver);
 }
 
-/* must be ready before omap3isp is probed */
-subsys_initcall(omap2_mbox_init);
+module_init(omap2_mbox_init);
 module_exit(omap2_mbox_exit);
 
 MODULE_LICENSE("GPL v2");
diff --git a/arch/arm/mach-omap2/mux.c b/arch/arm/mach-omap2/mux.c
index fb8bc9fa43b1..611a0e3d54ca 100644
--- a/arch/arm/mach-omap2/mux.c
+++ b/arch/arm/mach-omap2/mux.c
@@ -218,7 +218,7 @@ static int _omap_mux_get_by_name(struct omap_mux_partition *partition,
         return -ENODEV;
 }
 
-static int __init
+static int
 omap_mux_get_by_name(const char *muxname,
                         struct omap_mux_partition **found_partition,
                         struct omap_mux **found_mux)
diff --git a/arch/arm/mach-omap2/omap-iommu.c b/arch/arm/mach-omap2/omap-iommu.c
index b8822048e409..ac49384d0285 100644
--- a/arch/arm/mach-omap2/omap-iommu.c
+++ b/arch/arm/mach-omap2/omap-iommu.c
@@ -150,7 +150,8 @@ err_out:
                 platform_device_put(omap_iommu_pdev[i]);
         return err;
 }
-module_init(omap_iommu_init);
+/* must be ready before omap3isp is probed */
+subsys_initcall(omap_iommu_init);
 
 static void __exit omap_iommu_exit(void)
 {
diff --git a/arch/arm/mach-omap2/omap4-common.c b/arch/arm/mach-omap2/omap4-common.c
index 40a8fbc07e4b..70de277f5c15 100644
--- a/arch/arm/mach-omap2/omap4-common.c
+++ b/arch/arm/mach-omap2/omap4-common.c
@@ -24,12 +24,14 @@
 
 #include <plat/irqs.h>
 #include <plat/sram.h>
+#include <plat/omap-secure.h>
 
 #include <mach/hardware.h>
 #include <mach/omap-wakeupgen.h>
 
 #include "common.h"
 #include "omap4-sar-layout.h"
+#include <linux/export.h>
 
 #ifdef CONFIG_CACHE_L2X0
 static void __iomem *l2cache_base;
@@ -43,6 +45,9 @@ static void __iomem *sar_ram_base;
 
 void __iomem *dram_sync, *sram_sync;
 
+static phys_addr_t paddr;
+static u32 size;
+
 void omap_bus_sync(void)
 {
         if (dram_sync && sram_sync) {
@@ -51,19 +56,22 @@ void omap_bus_sync(void)
                 isb();
         }
 }
+EXPORT_SYMBOL(omap_bus_sync);
 
-static int __init omap_barriers_init(void)
+/* Steal one page physical memory for barrier implementation */
+int __init omap_barrier_reserve_memblock(void)
 {
-        struct map_desc dram_io_desc[1];
-        phys_addr_t paddr;
-        u32 size;
-
-        if (!cpu_is_omap44xx())
-                return -ENODEV;
 
         size = ALIGN(PAGE_SIZE, SZ_1M);
         paddr = arm_memblock_steal(size, SZ_1M);
 
+        return 0;
+}
+
+void __init omap_barriers_init(void)
+{
+        struct map_desc dram_io_desc[1];
+
         dram_io_desc[0].virtual = OMAP4_DRAM_BARRIER_VA;
         dram_io_desc[0].pfn = __phys_to_pfn(paddr);
         dram_io_desc[0].length = size;
@@ -75,9 +83,10 @@ static int __init omap_barriers_init(void)
         pr_info("OMAP4: Map 0x%08llx to 0x%08lx for dram barrier\n",
                 (long long) paddr, dram_io_desc[0].virtual);
 
-        return 0;
 }
-core_initcall(omap_barriers_init);
+#else
+void __init omap_barriers_init(void)
+{}
 #endif
 
 void __init gic_init_irq(void)
diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c
index 1881fe915149..5a65dd04aa38 100644
--- a/arch/arm/mach-omap2/pm.c
+++ b/arch/arm/mach-omap2/pm.c
@@ -174,14 +174,17 @@ static int __init omap2_set_init_voltage(char *vdd_name, char *clk_name,
         freq = clk->rate;
         clk_put(clk);
 
+        rcu_read_lock();
         opp = opp_find_freq_ceil(dev, &freq);
         if (IS_ERR(opp)) {
+                rcu_read_unlock();
                 pr_err("%s: unable to find boot up OPP for vdd_%s\n",
                         __func__, vdd_name);
                 goto exit;
         }
 
         bootup_volt = opp_get_voltage(opp);
+        rcu_read_unlock();
         if (!bootup_volt) {
                 pr_err("%s: unable to find voltage corresponding "
                         "to the bootup OPP for vdd_%s\n", __func__, vdd_name);
diff --git a/arch/arm/mach-omap2/twl-common.c b/arch/arm/mach-omap2/twl-common.c
index 10b20c652e5d..4b57757bf9d1 100644
--- a/arch/arm/mach-omap2/twl-common.c
+++ b/arch/arm/mach-omap2/twl-common.c
@@ -270,7 +270,6 @@ static struct regulator_init_data omap4_vusb_idata = {
         .constraints = {
                 .min_uV                 = 3300000,
                 .max_uV                 = 3300000,
-                .apply_uV               = true,
                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
                                         | REGULATOR_MODE_STANDBY,
                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
diff --git a/arch/arm/mach-omap2/usb-host.c b/arch/arm/mach-omap2/usb-host.c
index 771dc781b746..f51348dafafd 100644
--- a/arch/arm/mach-omap2/usb-host.c
+++ b/arch/arm/mach-omap2/usb-host.c
@@ -486,7 +486,7 @@ static void setup_4430ohci_io_mux(const enum usbhs_omap_port_mode *port_mode)
 void __init usbhs_init(const struct usbhs_omap_board_data *pdata)
 {
         struct omap_hwmod       *oh[2];
-        struct omap_device      *od;
+        struct platform_device  *pdev;
         int                     bus_id = -1;
         int                     i;
 
@@ -522,11 +522,11 @@ void __init usbhs_init(const struct usbhs_omap_board_data *pdata)
                 return;
         }
 
-        od = omap_device_build_ss(OMAP_USBHS_DEVICE, bus_id, oh, 2,
+        pdev = omap_device_build_ss(OMAP_USBHS_DEVICE, bus_id, oh, 2,
                                 (void *)&usbhs_data, sizeof(usbhs_data),
                                 omap_uhhtll_latency,
                                 ARRAY_SIZE(omap_uhhtll_latency), false);
-        if (IS_ERR(od)) {
+        if (IS_ERR(pdev)) {
                 pr_err("Could not build hwmod devices %s,%s\n",
                         USBHS_UHH_HWMODNAME, USBHS_TLL_HWMODNAME);
                 return;
diff --git a/arch/arm/mach-pxa/generic.h b/arch/arm/mach-pxa/generic.h
index 0d729e6619df..42d5cca66257 100644
--- a/arch/arm/mach-pxa/generic.h
+++ b/arch/arm/mach-pxa/generic.h
@@ -49,7 +49,6 @@ extern unsigned pxa3xx_get_clk_frequency_khz(int);
 #endif
 
 extern struct syscore_ops pxa_irq_syscore_ops;
-extern struct syscore_ops pxa_gpio_syscore_ops;
 extern struct syscore_ops pxa2xx_mfp_syscore_ops;
 extern struct syscore_ops pxa3xx_mfp_syscore_ops;
 
diff --git a/arch/arm/mach-pxa/hx4700.c b/arch/arm/mach-pxa/hx4700.c
index fb9b62dcf4ca..208eef1c0485 100644
--- a/arch/arm/mach-pxa/hx4700.c
+++ b/arch/arm/mach-pxa/hx4700.c
@@ -45,6 +45,7 @@
 #include <mach/hx4700.h>
 #include <mach/irda.h>
 
+#include <sound/ak4641.h>
 #include <video/platform_lcd.h>
 #include <video/w100fb.h>
 
@@ -765,6 +766,28 @@ static struct i2c_board_info __initdata pi2c_board_info[] = {
 };
 
 /*
+ * Asahi Kasei AK4641 on I2C
+ */
+
+static struct ak4641_platform_data ak4641_info = {
+        .gpio_power = GPIO27_HX4700_CODEC_ON,
+        .gpio_npdn  = GPIO109_HX4700_CODEC_nPDN,
+};
+
+static struct i2c_board_info i2c_board_info[] __initdata = {
+        {
+                I2C_BOARD_INFO("ak4641", 0x12),
+                .platform_data = &ak4641_info,
+        },
+};
+
+static struct platform_device audio = {
+        .name   = "hx4700-audio",
+        .id     = -1,
+};
+
+
+/*
  * PCMCIA
  */
 
@@ -790,6 +813,7 @@ static struct platform_device *devices[] __initdata = {
         &gpio_vbus,
         &power_supply,
         &strataflash,
+        &audio,
         &pcmcia,
 };
 
@@ -827,6 +851,7 @@ static void __init hx4700_init(void)
         pxa_set_ficp_info(&ficp_info);
         pxa27x_set_i2c_power_info(NULL);
         pxa_set_i2c_info(NULL);
+        i2c_register_board_info(0, ARRAY_AND_SIZE(i2c_board_info));
         i2c_register_board_info(1, ARRAY_AND_SIZE(pi2c_board_info));
         pxa2xx_set_spi_info(2, &pxa_ssp2_master_info);
         spi_register_board_info(ARRAY_AND_SIZE(tsc2046_board_info));
diff --git a/arch/arm/mach-pxa/mfp-pxa2xx.c b/arch/arm/mach-pxa/mfp-pxa2xx.c
index f14775536b83..29b62afc6f7c 100644
--- a/arch/arm/mach-pxa/mfp-pxa2xx.c
+++ b/arch/arm/mach-pxa/mfp-pxa2xx.c
@@ -226,6 +226,12 @@ static void __init pxa25x_mfp_init(void)
 {
         int i;
 
+        /* running before pxa_gpio_probe() */
+#ifdef CONFIG_CPU_PXA26x
+        pxa_last_gpio = 89;
+#else
+        pxa_last_gpio = 84;
+#endif
         for (i = 0; i <= pxa_last_gpio; i++)
                 gpio_desc[i].valid = 1;
 
@@ -295,6 +301,7 @@ static void __init pxa27x_mfp_init(void)
 {
         int i, gpio;
 
+        pxa_last_gpio = 120;    /* running before pxa_gpio_probe() */
         for (i = 0; i <= pxa_last_gpio; i++) {
                 /* skip GPIO2, 5, 6, 7, 8, they are not
                  * valid pins allow configuration
diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c
index 91e4f6c03766..3352b37b60cf 100644
--- a/arch/arm/mach-pxa/pxa25x.c
+++ b/arch/arm/mach-pxa/pxa25x.c
@@ -25,7 +25,6 @@
 #include <linux/suspend.h>
 #include <linux/syscore_ops.h>
 #include <linux/irq.h>
-#include <linux/gpio.h>
 
 #include <asm/mach/map.h>
 #include <asm/suspend.h>
@@ -209,6 +208,7 @@ static struct clk_lookup pxa25x_clkregs[] = {
         INIT_CLKREG(&clk_pxa25x_gpio11, NULL, "GPIO11_CLK"),
         INIT_CLKREG(&clk_pxa25x_gpio12, NULL, "GPIO12_CLK"),
         INIT_CLKREG(&clk_pxa25x_mem, "pxa2xx-pcmcia", NULL),
+        INIT_CLKREG(&clk_dummy, "pxa-gpio", NULL),
 };
 
 static struct clk_lookup pxa25x_hwuart_clkreg =
@@ -368,7 +368,6 @@ static int __init pxa25x_init(void)
 
                 register_syscore_ops(&pxa_irq_syscore_ops);
                 register_syscore_ops(&pxa2xx_mfp_syscore_ops);
-                register_syscore_ops(&pxa_gpio_syscore_ops);
                 register_syscore_ops(&pxa2xx_clock_syscore_ops);
 
                 ret = platform_add_devices(pxa25x_devices,
diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c
index aed6cbcf3866..6bce78edce7a 100644
--- a/arch/arm/mach-pxa/pxa27x.c
+++ b/arch/arm/mach-pxa/pxa27x.c
@@ -22,7 +22,6 @@
 #include <linux/io.h>
 #include <linux/irq.h>
 #include <linux/i2c/pxa-i2c.h>
-#include <linux/gpio.h>
 
 #include <asm/mach/map.h>
 #include <mach/hardware.h>
@@ -230,6 +229,7 @@ static struct clk_lookup pxa27x_clkregs[] = {
         INIT_CLKREG(&clk_pxa27x_im, NULL, "IMCLK"),
         INIT_CLKREG(&clk_pxa27x_memc, NULL, "MEMCLK"),
         INIT_CLKREG(&clk_pxa27x_mem, "pxa2xx-pcmcia", NULL),
+        INIT_CLKREG(&clk_dummy, "pxa-gpio", NULL),
 };
 
 #ifdef CONFIG_PM
@@ -456,7 +456,6 @@ static int __init pxa27x_init(void)
 
                 register_syscore_ops(&pxa_irq_syscore_ops);
                 register_syscore_ops(&pxa2xx_mfp_syscore_ops);
-                register_syscore_ops(&pxa_gpio_syscore_ops);
                 register_syscore_ops(&pxa2xx_clock_syscore_ops);
 
                 ret = platform_add_devices(devices, ARRAY_SIZE(devices));
diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c
index 4f402afa6609..3918a672238e 100644
--- a/arch/arm/mach-pxa/pxa3xx.c
+++ b/arch/arm/mach-pxa/pxa3xx.c
@@ -462,7 +462,6 @@ static int __init pxa3xx_init(void)
 
                 register_syscore_ops(&pxa_irq_syscore_ops);
                 register_syscore_ops(&pxa3xx_mfp_syscore_ops);
-                register_syscore_ops(&pxa_gpio_syscore_ops);
                 register_syscore_ops(&pxa3xx_clock_syscore_ops);
 
                 ret = platform_add_devices(devices, ARRAY_SIZE(devices));
diff --git a/arch/arm/mach-pxa/pxa95x.c b/arch/arm/mach-pxa/pxa95x.c
index d082a583df78..5ce434b95e87 100644
--- a/arch/arm/mach-pxa/pxa95x.c
+++ b/arch/arm/mach-pxa/pxa95x.c
@@ -283,7 +283,6 @@ static int __init pxa95x_init(void)
                         return ret;
 
                 register_syscore_ops(&pxa_irq_syscore_ops);
-                register_syscore_ops(&pxa_gpio_syscore_ops);
                 register_syscore_ops(&pxa3xx_clock_syscore_ops);
 
                 ret = platform_add_devices(devices, ARRAY_SIZE(devices));
diff --git a/arch/arm/mach-pxa/saarb.c b/arch/arm/mach-pxa/saarb.c
index febc809ed5a6..5aded5e6148f 100644
--- a/arch/arm/mach-pxa/saarb.c
+++ b/arch/arm/mach-pxa/saarb.c
@@ -15,7 +15,6 @@
 #include <linux/i2c.h>
 #include <linux/i2c/pxa-i2c.h>
 #include <linux/mfd/88pm860x.h>
-#include <linux/gpio.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
diff --git a/arch/arm/mach-pxa/sharpsl_pm.c b/arch/arm/mach-pxa/sharpsl_pm.c
index 8d5168d253a9..30989baf7f2a 100644
--- a/arch/arm/mach-pxa/sharpsl_pm.c
+++ b/arch/arm/mach-pxa/sharpsl_pm.c
@@ -168,6 +168,7 @@ struct battery_thresh sharpsl_battery_levels_noac[] = {
 #define MAXCTRL_SEL_SH   4
 #define MAXCTRL_STR      (1u << 7)
 
+extern int max1111_read_channel(int);
 /*
  * Read MAX1111 ADC
  */
@@ -177,8 +178,6 @@ int sharpsl_pm_pxa_read_max1111(int channel)
         if (machine_is_tosa())
             return 0;
 
-        extern int max1111_read_channel(int);
-
         /* max1111 accepts channels from 0-3, however,
          * it is encoded from 0-7 here in the code.
          */
diff --git a/arch/arm/mach-pxa/spitz_pm.c b/arch/arm/mach-pxa/spitz_pm.c
index 34cbdac51525..438f02fe122a 100644
--- a/arch/arm/mach-pxa/spitz_pm.c
+++ b/arch/arm/mach-pxa/spitz_pm.c
@@ -172,10 +172,9 @@ static int spitz_should_wakeup(unsigned int resume_on_alarm)
 static unsigned long spitz_charger_wakeup(void)
 {
         unsigned long ret;
-        ret = (!gpio_get_value(SPITZ_GPIO_KEY_INT)
+        ret = ((!gpio_get_value(SPITZ_GPIO_KEY_INT)
                 << GPIO_bit(SPITZ_GPIO_KEY_INT))
-                | (!gpio_get_value(SPITZ_GPIO_SYNC)
-                << GPIO_bit(SPITZ_GPIO_SYNC));
+                | gpio_get_value(SPITZ_GPIO_SYNC));
         return ret;
 }
 
diff --git a/arch/arm/mach-s3c2440/common.h b/arch/arm/mach-s3c2440/common.h
index db8a98ac68c5..0c1eb1dfc534 100644
--- a/arch/arm/mach-s3c2440/common.h
+++ b/arch/arm/mach-s3c2440/common.h
@@ -12,6 +12,6 @@
 #ifndef __ARCH_ARM_MACH_S3C2440_COMMON_H
 #define __ARCH_ARM_MACH_S3C2440_COMMON_H
 
-void s3c2440_restart(char mode, const char *cmd);
+void s3c244x_restart(char mode, const char *cmd);
 
 #endif /* __ARCH_ARM_MACH_S3C2440_COMMON_H */
diff --git a/arch/arm/mach-s3c2440/mach-anubis.c b/arch/arm/mach-s3c2440/mach-anubis.c
index 24569550de1a..19b577bc09b8 100644
--- a/arch/arm/mach-s3c2440/mach-anubis.c
+++ b/arch/arm/mach-s3c2440/mach-anubis.c
@@ -487,5 +487,5 @@ MACHINE_START(ANUBIS, "Simtec-Anubis")
         .init_machine   = anubis_init,
         .init_irq       = s3c24xx_init_irq,
         .timer          = &s3c24xx_timer,
-        .restart        = s3c2440_restart,
+        .restart        = s3c244x_restart,
 MACHINE_END
diff --git a/arch/arm/mach-s3c2440/mach-at2440evb.c b/arch/arm/mach-s3c2440/mach-at2440evb.c
index d6a9763110cd..d7ae49c90118 100644
--- a/arch/arm/mach-s3c2440/mach-at2440evb.c
+++ b/arch/arm/mach-s3c2440/mach-at2440evb.c
@@ -222,5 +222,5 @@ MACHINE_START(AT2440EVB, "AT2440EVB")
         .init_machine   = at2440evb_init,
         .init_irq       = s3c24xx_init_irq,
         .timer          = &s3c24xx_timer,
-        .restart        = s3c2440_restart,
+        .restart        = s3c244x_restart,
 MACHINE_END
diff --git a/arch/arm/mach-s3c2440/mach-gta02.c b/arch/arm/mach-s3c2440/mach-gta02.c
index 5859e609d28c..9a4a5bc008e6 100644
--- a/arch/arm/mach-s3c2440/mach-gta02.c
+++ b/arch/arm/mach-s3c2440/mach-gta02.c
@@ -601,5 +601,5 @@ MACHINE_START(NEO1973_GTA02, "GTA02")
         .init_irq       = s3c24xx_init_irq,
         .init_machine   = gta02_machine_init,
         .timer          = &s3c24xx_timer,
-        .restart        = s3c2440_restart,
+        .restart        = s3c244x_restart,
 MACHINE_END
diff --git a/arch/arm/mach-s3c2440/mach-mini2440.c b/arch/arm/mach-s3c2440/mach-mini2440.c
index adbbb85bc4cd..5d66fb218a41 100644
--- a/arch/arm/mach-s3c2440/mach-mini2440.c
+++ b/arch/arm/mach-s3c2440/mach-mini2440.c
@@ -701,5 +701,5 @@ MACHINE_START(MINI2440, "MINI2440")
         .init_machine   = mini2440_init,
         .init_irq       = s3c24xx_init_irq,
         .timer          = &s3c24xx_timer,
-        .restart        = s3c2440_restart,
+        .restart        = s3c244x_restart,
 MACHINE_END
diff --git a/arch/arm/mach-s3c2440/mach-nexcoder.c b/arch/arm/mach-s3c2440/mach-nexcoder.c
index 40eaf844bc1f..5198e3e1c5be 100644
--- a/arch/arm/mach-s3c2440/mach-nexcoder.c
+++ b/arch/arm/mach-s3c2440/mach-nexcoder.c
@@ -158,5 +158,5 @@ MACHINE_START(NEXCODER_2440, "NexVision - Nexcoder 2440")
         .init_machine   = nexcoder_init,
         .init_irq       = s3c24xx_init_irq,
         .timer          = &s3c24xx_timer,
-        .restart        = s3c2440_restart,
+        .restart        = s3c244x_restart,
 MACHINE_END
diff --git a/arch/arm/mach-s3c2440/mach-osiris.c b/arch/arm/mach-s3c2440/mach-osiris.c
index 4c480ef734f6..c5daeb612a88 100644
--- a/arch/arm/mach-s3c2440/mach-osiris.c
+++ b/arch/arm/mach-s3c2440/mach-osiris.c
@@ -436,5 +436,5 @@ MACHINE_START(OSIRIS, "Simtec-OSIRIS")
         .init_irq       = s3c24xx_init_irq,
         .init_machine   = osiris_init,
         .timer          = &s3c24xx_timer,
-        .restart        = s3c2440_restart,
+        .restart        = s3c244x_restart,
 MACHINE_END
diff --git a/arch/arm/mach-s3c2440/mach-rx1950.c b/arch/arm/mach-s3c2440/mach-rx1950.c
index 80077f6472ee..6f68abf44fab 100644
--- a/arch/arm/mach-s3c2440/mach-rx1950.c
+++ b/arch/arm/mach-s3c2440/mach-rx1950.c
@@ -822,5 +822,5 @@ MACHINE_START(RX1950, "HP iPAQ RX1950")
         .init_irq = s3c24xx_init_irq,
         .init_machine = rx1950_init_machine,
         .timer = &s3c24xx_timer,
-        .restart        = s3c2440_restart,
+        .restart        = s3c244x_restart,
 MACHINE_END
diff --git a/arch/arm/mach-s3c2440/mach-rx3715.c b/arch/arm/mach-s3c2440/mach-rx3715.c
index 20103bafbd4b..56af35447598 100644
--- a/arch/arm/mach-s3c2440/mach-rx3715.c
+++ b/arch/arm/mach-s3c2440/mach-rx3715.c
@@ -213,5 +213,5 @@ MACHINE_START(RX3715, "IPAQ-RX3715")
         .init_irq       = rx3715_init_irq,
         .init_machine   = rx3715_init_machine,
         .timer          = &s3c24xx_timer,
-        .restart        = s3c2440_restart,
+        .restart        = s3c244x_restart,
 MACHINE_END
diff --git a/arch/arm/mach-s3c2440/mach-smdk2440.c b/arch/arm/mach-s3c2440/mach-smdk2440.c
index 1deb60d12a60..83a1036d7dcb 100644
--- a/arch/arm/mach-s3c2440/mach-smdk2440.c
+++ b/arch/arm/mach-s3c2440/mach-smdk2440.c
@@ -183,5 +183,5 @@ MACHINE_START(S3C2440, "SMDK2440")
         .map_io         = smdk2440_map_io,
         .init_machine   = smdk2440_machine_init,
         .timer          = &s3c24xx_timer,
-        .restart        = s3c2440_restart,
+        .restart        = s3c244x_restart,
 MACHINE_END
diff --git a/arch/arm/mach-s3c2440/s3c2440.c b/arch/arm/mach-s3c2440/s3c2440.c
index 517623a09fc5..2b3dddb49af7 100644
--- a/arch/arm/mach-s3c2440/s3c2440.c
+++ b/arch/arm/mach-s3c2440/s3c2440.c
@@ -35,7 +35,6 @@
 #include <plat/cpu.h>
 #include <plat/s3c244x.h>
 #include <plat/pm.h>
-#include <plat/watchdog-reset.h>
 
 #include <plat/gpio-core.h>
 #include <plat/gpio-cfg.h>
@@ -74,15 +73,3 @@ void __init s3c2440_map_io(void)
         s3c24xx_gpiocfg_default.set_pull = s3c24xx_gpio_setpull_1up;
         s3c24xx_gpiocfg_default.get_pull = s3c24xx_gpio_getpull_1up;
 }
-
-void s3c2440_restart(char mode, const char *cmd)
-{
-        if (mode == 's') {
-                soft_restart(0);
-        }
-
-        arch_wdt_reset();
-
-        /* we'll take a jump through zero as a poor second */
-        soft_restart(0);
-}
diff --git a/arch/arm/mach-s3c2440/s3c244x.c b/arch/arm/mach-s3c2440/s3c244x.c
index 36bc60f61d0a..d15852f642b7 100644
--- a/arch/arm/mach-s3c2440/s3c244x.c
+++ b/arch/arm/mach-s3c2440/s3c244x.c
@@ -46,6 +46,7 @@
 #include <plat/pm.h>
 #include <plat/pll.h>
 #include <plat/nand-core.h>
+#include <plat/watchdog-reset.h>
 
 static struct map_desc s3c244x_iodesc[] __initdata = {
         IODESC_ENT(CLKPWR),
@@ -196,3 +197,14 @@ struct syscore_ops s3c244x_pm_syscore_ops = {
         .suspend        = s3c244x_suspend,
         .resume         = s3c244x_resume,
 };
+
+void s3c244x_restart(char mode, const char *cmd)
+{
+        if (mode == 's')
+                soft_restart(0);
+
+        arch_wdt_reset();
+
+        /* we'll take a jump through zero as a poor second */
+        soft_restart(0);
+}
diff --git a/arch/arm/mach-ux500/Kconfig b/arch/arm/mach-ux500/Kconfig
index 52af00446a63..c59e8b892d6b 100644
--- a/arch/arm/mach-ux500/Kconfig
+++ b/arch/arm/mach-ux500/Kconfig
@@ -5,7 +5,7 @@ config UX500_SOC_COMMON
         default y
         select ARM_GIC
         select HAS_MTU
-        select ARM_ERRATA_753970
+        select PL310_ERRATA_753970
         select ARM_ERRATA_754322
         select ARM_ERRATA_764369
 
diff --git a/arch/arm/mach-vexpress/Kconfig b/arch/arm/mach-vexpress/Kconfig
index 9b3d0fbaee72..88c3ba151e87 100644
--- a/arch/arm/mach-vexpress/Kconfig
+++ b/arch/arm/mach-vexpress/Kconfig
@@ -7,7 +7,7 @@ config ARCH_VEXPRESS_CA9X4
         select ARM_GIC
         select ARM_ERRATA_720789
         select ARM_ERRATA_751472
-        select ARM_ERRATA_753970
+        select PL310_ERRATA_753970
         select HAVE_SMP
         select MIGHT_HAVE_CACHE_L2X0
 
diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S
index 0404ccbb8aa3..f1c8486f7501 100644
--- a/arch/arm/mm/proc-v7.S
+++ b/arch/arm/mm/proc-v7.S
@@ -230,9 +230,7 @@ __v7_setup:
         mcreq   p15, 0, r10, c15, c0, 1         @ write diagnostic register
 #endif
 #ifdef CONFIG_ARM_ERRATA_743622
-        teq     r6, #0x20                       @ present in r2p0
-        teqne   r6, #0x21                       @ present in r2p1
-        teqne   r6, #0x22                       @ present in r2p2
+        teq     r5, #0x00200000                 @ only present in r2p*
         mrceq   p15, 0, r10, c15, c0, 1         @ read diagnostic register
         orreq   r10, r10, #1 << 6               @ set bit #6
         mcreq   p15, 0, r10, c15, c0, 1         @ write diagnostic register
diff --git a/arch/arm/plat-omap/common.c b/arch/arm/plat-omap/common.c
index 06383b51e655..4de7d1e79e73 100644
--- a/arch/arm/plat-omap/common.c
+++ b/arch/arm/plat-omap/common.c
@@ -69,6 +69,7 @@ void __init omap_reserve(void)
         omap_vram_reserve_sdram_memblock();
         omap_dsp_reserve_sdram_memblock();
         omap_secure_ram_reserve_memblock();
+        omap_barrier_reserve_memblock();
 }
 
 void __init omap_init_consistent_dma_size(void)
diff --git a/arch/arm/plat-omap/include/plat/irqs.h b/arch/arm/plat-omap/include/plat/irqs.h
index 2efd6454bce0..37bbbbb981b2 100644
--- a/arch/arm/plat-omap/include/plat/irqs.h
+++ b/arch/arm/plat-omap/include/plat/irqs.h
@@ -428,8 +428,16 @@
 #define OMAP_GPMC_NR_IRQS       8
 #define OMAP_GPMC_IRQ_END       (OMAP_GPMC_IRQ_BASE + OMAP_GPMC_NR_IRQS)
 
+/* PRCM IRQ handler */
+#ifdef CONFIG_ARCH_OMAP2PLUS
+#define OMAP_PRCM_IRQ_BASE      (OMAP_GPMC_IRQ_END)
+#define OMAP_PRCM_NR_IRQS       64
+#define OMAP_PRCM_IRQ_END       (OMAP_PRCM_IRQ_BASE + OMAP_PRCM_NR_IRQS)
+#else
+#define OMAP_PRCM_IRQ_END       OMAP_GPMC_IRQ_END
+#endif
 
-#define NR_IRQS                 OMAP_GPMC_IRQ_END
+#define NR_IRQS                 OMAP_PRCM_IRQ_END
 
 #define OMAP_IRQ_BIT(irq)       (1 << ((irq) % 32))
 
diff --git a/arch/arm/plat-omap/include/plat/omap-secure.h b/arch/arm/plat-omap/include/plat/omap-secure.h
index 3047ff923a63..8c7994ce9869 100644
--- a/arch/arm/plat-omap/include/plat/omap-secure.h
+++ b/arch/arm/plat-omap/include/plat/omap-secure.h
@@ -10,4 +10,10 @@ static inline void omap_secure_ram_reserve_memblock(void)
 { }
 #endif
 
+#ifdef CONFIG_OMAP4_ERRATA_I688
+extern int omap_barrier_reserve_memblock(void);
+#else
+static inline void omap_barrier_reserve_memblock(void)
+{ }
+#endif
 #endif /* __OMAP_SECURE_H__ */
diff --git a/arch/arm/plat-s3c24xx/dma.c b/arch/arm/plat-s3c24xx/dma.c
index 9fe35348e03b..2bab4c99a234 100644
--- a/arch/arm/plat-s3c24xx/dma.c
+++ b/arch/arm/plat-s3c24xx/dma.c
@@ -1249,7 +1249,7 @@ static void s3c2410_dma_resume(void)
         struct s3c2410_dma_chan *cp = s3c2410_chans + dma_channels - 1;
         int channel;
 
-        for (channel = dma_channels - 1; channel >= 0; cp++, channel--)
+        for (channel = dma_channels - 1; channel >= 0; cp--, channel--)
                 s3c2410_dma_resume_chan(cp);
 }
 
diff --git a/arch/arm/plat-samsung/devs.c b/arch/arm/plat-samsung/devs.c
index f10768e988d4..d21d744e4d99 100644
--- a/arch/arm/plat-samsung/devs.c
+++ b/arch/arm/plat-samsung/devs.c
@@ -1409,7 +1409,7 @@ void __init s5p_ehci_set_platdata(struct s5p_ehci_platdata *pd)
 
 #ifdef CONFIG_S3C_DEV_USB_HSOTG
 static struct resource s3c_usb_hsotg_resources[] = {
-        [0] = DEFINE_RES_MEM(S3C_PA_USB_HSOTG, SZ_16K),
+        [0] = DEFINE_RES_MEM(S3C_PA_USB_HSOTG, SZ_128K),
         [1] = DEFINE_RES_IRQ(IRQ_OTG),
 };
 
diff --git a/arch/arm/plat-spear/time.c b/arch/arm/plat-spear/time.c
index 0c77e4298675..abb5bdecd509 100644
--- a/arch/arm/plat-spear/time.c
+++ b/arch/arm/plat-spear/time.c
@@ -145,11 +145,13 @@ static void clockevent_set_mode(enum clock_event_mode mode,
 static int clockevent_next_event(unsigned long cycles,
                                  struct clock_event_device *clk_event_dev)
 {
-        u16 val;
+        u16 val = readw(gpt_base + CR(CLKEVT));
+
+        if (val & CTRL_ENABLE)
+                writew(val & ~CTRL_ENABLE, gpt_base + CR(CLKEVT));
 
         writew(cycles, gpt_base + LOAD(CLKEVT));
 
-        val = readw(gpt_base + CR(CLKEVT));
         val |= CTRL_ENABLE | CTRL_INT_ENABLE;
         writew(val, gpt_base + CR(CLKEVT));
 
diff --git a/arch/c6x/include/asm/processor.h b/arch/c6x/include/asm/processor.h
index 8154c4ee8c9c..77ecbded1f37 100644
--- a/arch/c6x/include/asm/processor.h
+++ b/arch/c6x/include/asm/processor.h
@@ -122,8 +122,8 @@ extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags);
 
 extern unsigned long get_wchan(struct task_struct *p);
 
-#define KSTK_EIP(tsk)   (task_pt_regs(task)->pc)
-#define KSTK_ESP(tsk)   (task_pt_regs(task)->sp)
+#define KSTK_EIP(task)  (task_pt_regs(task)->pc)
+#define KSTK_ESP(task)  (task_pt_regs(task)->sp)
 
 #define cpu_relax()             do { } while (0)
 
diff --git a/arch/mips/alchemy/common/time.c b/arch/mips/alchemy/common/time.c
index 7da4d0081487..a7193ae13a5d 100644
--- a/arch/mips/alchemy/common/time.c
+++ b/arch/mips/alchemy/common/time.c
@@ -146,7 +146,7 @@ static int __init alchemy_time_init(unsigned int m2int)
         cd->shift = 32;
         cd->mult = div_sc(32768, NSEC_PER_SEC, cd->shift);
         cd->max_delta_ns = clockevent_delta2ns(0xffffffff, cd);
-        cd->min_delta_ns = clockevent_delta2ns(8, cd);  /* ~0.25ms */
+        cd->min_delta_ns = clockevent_delta2ns(9, cd);  /* ~0.28ms */
         clockevents_register_device(cd);
         setup_irq(m2int, &au1x_rtcmatch2_irqaction);
 
diff --git a/arch/mips/ath79/dev-wmac.c b/arch/mips/ath79/dev-wmac.c
index 24f546985b69..e21507052066 100644
--- a/arch/mips/ath79/dev-wmac.c
+++ b/arch/mips/ath79/dev-wmac.c
@@ -96,7 +96,7 @@ void __init ath79_register_wmac(u8 *cal_data)
 {
         if (soc_is_ar913x())
                 ar913x_wmac_setup();
-        if (soc_is_ar933x())
+        else if (soc_is_ar933x())
                 ar933x_wmac_setup();
         else
                 BUG();
diff --git a/arch/mips/configs/nlm_xlp_defconfig b/arch/mips/configs/nlm_xlp_defconfig
index 4479fd669ac1..28c6b276c216 100644
--- a/arch/mips/configs/nlm_xlp_defconfig
+++ b/arch/mips/configs/nlm_xlp_defconfig
@@ -8,7 +8,7 @@ CONFIG_HIGH_RES_TIMERS=y
 # CONFIG_SECCOMP is not set
 CONFIG_USE_OF=y
 CONFIG_EXPERIMENTAL=y
-CONFIG_CROSS_COMPILE="mips-linux-gnu-"
+CONFIG_CROSS_COMPILE=""
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
@@ -22,7 +22,7 @@ CONFIG_AUDIT=y
 CONFIG_CGROUPS=y
 CONFIG_NAMESPACES=y
 CONFIG_BLK_DEV_INITRD=y
-CONFIG_INITRAMFS_SOURCE="usr/dev_file_list usr/rootfs.xlp"
+CONFIG_INITRAMFS_SOURCE=""
 CONFIG_RD_BZIP2=y
 CONFIG_RD_LZMA=y
 CONFIG_INITRAMFS_COMPRESSION_LZMA=y
diff --git a/arch/mips/configs/nlm_xlr_defconfig b/arch/mips/configs/nlm_xlr_defconfig
index 7c68666fdd64..d0b857d98c91 100644
--- a/arch/mips/configs/nlm_xlr_defconfig
+++ b/arch/mips/configs/nlm_xlr_defconfig
@@ -8,7 +8,7 @@ CONFIG_HIGH_RES_TIMERS=y
 CONFIG_PREEMPT_VOLUNTARY=y
 CONFIG_KEXEC=y
 CONFIG_EXPERIMENTAL=y
-CONFIG_CROSS_COMPILE="mips-linux-gnu-"
+CONFIG_CROSS_COMPILE=""
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
@@ -22,7 +22,7 @@ CONFIG_AUDIT=y
 CONFIG_NAMESPACES=y
 CONFIG_SCHED_AUTOGROUP=y
 CONFIG_BLK_DEV_INITRD=y
-CONFIG_INITRAMFS_SOURCE="usr/dev_file_list usr/rootfs.xlr"
+CONFIG_INITRAMFS_SOURCE=""
 CONFIG_RD_BZIP2=y
 CONFIG_RD_LZMA=y
 CONFIG_INITRAMFS_COMPRESSION_GZIP=y
diff --git a/arch/mips/configs/powertv_defconfig b/arch/mips/configs/powertv_defconfig
index 3b0b6e8c8533..7fda0ce5f692 100644
--- a/arch/mips/configs/powertv_defconfig
+++ b/arch/mips/configs/powertv_defconfig
@@ -6,7 +6,7 @@ CONFIG_HZ_1000=y
 CONFIG_PREEMPT=y
 # CONFIG_SECCOMP is not set
 CONFIG_EXPERIMENTAL=y
-CONFIG_CROSS_COMPILE="mips-linux-"
+CONFIG_CROSS_COMPILE=""
 # CONFIG_SWAP is not set
 CONFIG_SYSVIPC=y
 CONFIG_LOG_BUF_SHIFT=16
diff --git a/arch/mips/include/asm/mach-au1x00/gpio-au1300.h b/arch/mips/include/asm/mach-au1x00/gpio-au1300.h
index 556e1be20bf6..fb9975c74c57 100644
--- a/arch/mips/include/asm/mach-au1x00/gpio-au1300.h
+++ b/arch/mips/include/asm/mach-au1x00/gpio-au1300.h
@@ -11,6 +11,9 @@
 #include <asm/io.h>
 #include <asm/mach-au1x00/au1000.h>
 
+struct gpio;
+struct gpio_chip;
+
 /* with the current GPIC design, up to 128 GPIOs are possible.
  * The only implementation so far is in the Au1300, which has 75 externally
  * available GPIOs.
@@ -203,7 +206,22 @@ static inline int gpio_request(unsigned int gpio, const char *label)
         return 0;
 }
 
-static inline void gpio_free(unsigned int gpio)
+static inline int gpio_request_one(unsigned gpio,
+                                        unsigned long flags, const char *label)
+{
+        return 0;
+}
+
+static inline int gpio_request_array(struct gpio *array, size_t num)
+{
+        return 0;
+}
+
+static inline void gpio_free(unsigned gpio)
+{
+}
+
+static inline void gpio_free_array(struct gpio *array, size_t num)
 {
 }
 
diff --git a/arch/mips/include/asm/page.h b/arch/mips/include/asm/page.h
index d41790928c64..da9bd7d270d1 100644
--- a/arch/mips/include/asm/page.h
+++ b/arch/mips/include/asm/page.h
@@ -39,9 +39,6 @@
 #define HPAGE_MASK      (~(HPAGE_SIZE - 1))
 #define HUGETLB_PAGE_ORDER      (HPAGE_SHIFT - PAGE_SHIFT)
 #else /* !CONFIG_HUGETLB_PAGE */
-# ifndef BUILD_BUG
-#  define BUILD_BUG() do { extern void __build_bug(void); __build_bug(); } while (0)
-# endif
 #define HPAGE_SHIFT     ({BUILD_BUG(); 0; })
 #define HPAGE_SIZE      ({BUILD_BUG(); 0; })
 #define HPAGE_MASK      ({BUILD_BUG(); 0; })
diff --git a/arch/mips/kernel/smp-bmips.c b/arch/mips/kernel/smp-bmips.c
index 58fe71afd879..d5e950ab8527 100644
--- a/arch/mips/kernel/smp-bmips.c
+++ b/arch/mips/kernel/smp-bmips.c
@@ -8,7 +8,6 @@
  * SMP support for BMIPS
  */
 
-#include <linux/version.h>
 #include <linux/init.h>
 #include <linux/sched.h>
 #include <linux/mm.h>
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index cc4a3f120f54..d79ae5437b58 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -1135,7 +1135,7 @@ asmlinkage void do_mt(struct pt_regs *regs)
                 printk(KERN_DEBUG "YIELD Scheduler Exception\n");
                 break;
         case 5:
-                printk(KERN_DEBUG "Gating Storage Schedulier Exception\n");
+                printk(KERN_DEBUG "Gating Storage Scheduler Exception\n");
                 break;
         default:
                 printk(KERN_DEBUG "*** UNKNOWN THREAD EXCEPTION %d ***\n",
diff --git a/arch/mips/kernel/vmlinux.lds.S b/arch/mips/kernel/vmlinux.lds.S
index a81176f44c74..924da5eb7031 100644
--- a/arch/mips/kernel/vmlinux.lds.S
+++ b/arch/mips/kernel/vmlinux.lds.S
@@ -69,7 +69,6 @@ SECTIONS
         RODATA
 
         /* writeable */
-        _sdata = .;                             /* Start of data section */
         .data : {       /* Data */
                 . = . + DATAOFFSET;             /* for CONFIG_MAPPED_KERNEL */
 
diff --git a/arch/mips/mm/fault.c b/arch/mips/mm/fault.c
index 937cf3368164..69ebd586d7ff 100644
--- a/arch/mips/mm/fault.c
+++ b/arch/mips/mm/fault.c
@@ -42,6 +42,8 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs, unsigned long writ
         const int field = sizeof(unsigned long) * 2;
         siginfo_t info;
         int fault;
+        unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE |
+                                                 (write ? FAULT_FLAG_WRITE : 0);
 
 #if 0
         printk("Cpu%d[%s:%d:%0*lx:%ld:%0*lx]\n", raw_smp_processor_id(),
@@ -91,6 +93,7 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs, unsigned long writ
         if (in_atomic() || !mm)
                 goto bad_area_nosemaphore;
 
+retry:
         down_read(&mm->mmap_sem);
         vma = find_vma(mm, address);
         if (!vma)
@@ -144,7 +147,11 @@ good_area:
          * make sure we exit gracefully rather than endlessly redo
          * the fault.
          */
-        fault = handle_mm_fault(mm, vma, address, write ? FAULT_FLAG_WRITE : 0);
+        fault = handle_mm_fault(mm, vma, address, flags);
+
+        if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
+                return;
+
         perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, address);
         if (unlikely(fault & VM_FAULT_ERROR)) {
                 if (fault & VM_FAULT_OOM)
@@ -153,12 +160,27 @@ good_area:
                         goto do_sigbus;
                 BUG();
         }
-        if (fault & VM_FAULT_MAJOR) {
-                perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, regs, address);
-                tsk->maj_flt++;
-        } else {
-                perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, regs, address);
-                tsk->min_flt++;
+        if (flags & FAULT_FLAG_ALLOW_RETRY) {
+                if (fault & VM_FAULT_MAJOR) {
+                        perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1,
+                                                  regs, address);
+                        tsk->maj_flt++;
+                } else {
+                        perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1,
+                                                  regs, address);
+                        tsk->min_flt++;
+                }
+                if (fault & VM_FAULT_RETRY) {
+                        flags &= ~FAULT_FLAG_ALLOW_RETRY;
+
+                        /*
+                         * No need to up_read(&mm->mmap_sem) as we would
+                         * have already released it in __lock_page_or_retry
+                         * in mm/filemap.c.
+                         */
+
+                        goto retry;
+                }
         }
 
         up_read(&mm->mmap_sem);
diff --git a/arch/mips/pci/pci.c b/arch/mips/pci/pci.c
index aec2b111d35b..15521505ebe8 100644
--- a/arch/mips/pci/pci.c
+++ b/arch/mips/pci/pci.c
@@ -279,7 +279,6 @@ void __devinit pcibios_fixup_bus(struct pci_bus *bus)
 {
         /* Propagate hose info into the subordinate devices.  */
 
-        struct list_head *ln;
         struct pci_dev *dev = bus->self;
 
         if (pci_probe_only && dev &&
@@ -288,9 +287,7 @@ void __devinit pcibios_fixup_bus(struct pci_bus *bus)
                 pcibios_fixup_device_resources(dev, bus);
         }
 
-        for (ln = bus->devices.next; ln != &bus->devices; ln = ln->next) {
-                dev = pci_dev_b(ln);
-
+        list_for_each_entry(dev, &bus->devices, bus_list) {
                 if ((dev->class >> 8) != PCI_CLASS_BRIDGE_PCI)
                         pcibios_fixup_device_resources(dev, bus);
         }
diff --git a/arch/mips/pmc-sierra/yosemite/ht-irq.c b/arch/mips/pmc-sierra/yosemite/ht-irq.c
index 86b98e98fb4f..62ead6601c69 100644
--- a/arch/mips/pmc-sierra/yosemite/ht-irq.c
+++ b/arch/mips/pmc-sierra/yosemite/ht-irq.c
@@ -35,16 +35,6 @@
  */
 void __init titan_ht_pcibios_fixup_bus(struct pci_bus *bus)
 {
-        struct pci_bus *current_bus = bus;
-        struct pci_dev *devices;
-        struct list_head *devices_link;
-
-        list_for_each(devices_link, &(current_bus->devices)) {
-                devices = pci_dev_b(devices_link);
-                if (devices == NULL)
-                        continue;
-        }
-
         /*
          * PLX and SPKT related changes go here
          */
diff --git a/arch/mips/txx9/generic/7segled.c b/arch/mips/txx9/generic/7segled.c
index 8e93b2122524..4642f56e70e5 100644
--- a/arch/mips/txx9/generic/7segled.c
+++ b/arch/mips/txx9/generic/7segled.c
@@ -102,7 +102,7 @@ static int __init tx_7segled_init_sysfs(void)
                         break;
                 }
                 dev->id = i;
-                dev->dev = &tx_7segled_subsys;
+                dev->bus = &tx_7segled_subsys;
                 error = device_register(dev);
                 if (!error) {
                         device_create_file(dev, &dev_attr_ascii);
diff --git a/arch/openrisc/include/asm/ptrace.h b/arch/openrisc/include/asm/ptrace.h
index 054537c5f9c9..e612ce4512c7 100644
--- a/arch/openrisc/include/asm/ptrace.h
+++ b/arch/openrisc/include/asm/ptrace.h
@@ -77,7 +77,6 @@ struct pt_regs {
         long  syscallno;        /* Syscall number (used by strace) */
         long dummy;             /* Cheap alignment fix */
 };
-#endif /* __ASSEMBLY__ */
 
 /* TODO: Rename this to REDZONE because that's what it is */
 #define STACK_FRAME_OVERHEAD  128  /* size of minimum stack frame */
@@ -87,6 +86,13 @@ struct pt_regs {
 #define user_stack_pointer(regs)        ((unsigned long)(regs)->sp)
 #define profile_pc(regs)                instruction_pointer(regs)
 
+static inline long regs_return_value(struct pt_regs *regs)
+{
+        return regs->gpr[11];
+}
+
+#endif /* __ASSEMBLY__ */
+
 /*
  * Offsets used by 'ptrace' system call interface.
  */
diff --git a/arch/openrisc/kernel/init_task.c b/arch/openrisc/kernel/init_task.c
index 45744a384927..ca534082d5f3 100644
--- a/arch/openrisc/kernel/init_task.c
+++ b/arch/openrisc/kernel/init_task.c
@@ -17,6 +17,7 @@
 
 #include <linux/init_task.h>
 #include <linux/mqueue.h>
+#include <linux/export.h>
 
 static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
 static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
diff --git a/arch/openrisc/kernel/irq.c b/arch/openrisc/kernel/irq.c
index 59b302338331..4bfead220956 100644
--- a/arch/openrisc/kernel/irq.c
+++ b/arch/openrisc/kernel/irq.c
@@ -23,6 +23,7 @@
 #include <linux/irq.h>
 #include <linux/seq_file.h>
 #include <linux/kernel_stat.h>
+#include <linux/export.h>
 
 #include <linux/irqflags.h>
 
diff --git a/arch/openrisc/kernel/ptrace.c b/arch/openrisc/kernel/ptrace.c
index 656b94beab89..7259047d5f9d 100644
--- a/arch/openrisc/kernel/ptrace.c
+++ b/arch/openrisc/kernel/ptrace.c
@@ -188,11 +188,9 @@ asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
                  */
                 ret = -1L;
 
-        /* Are these regs right??? */
-        if (unlikely(current->audit_context))
-                audit_syscall_entry(audit_arch(), regs->syscallno,
-                                    regs->gpr[3], regs->gpr[4],
-                                    regs->gpr[5], regs->gpr[6]);
+        audit_syscall_entry(audit_arch(), regs->syscallno,
+                            regs->gpr[3], regs->gpr[4],
+                            regs->gpr[5], regs->gpr[6]);
 
         return ret ? : regs->syscallno;
 }
@@ -201,9 +199,7 @@ asmlinkage void do_syscall_trace_leave(struct pt_regs *regs)
 {
         int step;
 
-        if (unlikely(current->audit_context))
-                audit_syscall_exit(AUDITSC_RESULT(regs->gpr[11]),
-                                   regs->gpr[11]);
+        audit_syscall_exit(regs);
 
         step = test_thread_flag(TIF_SINGLESTEP);
         if (step || test_thread_flag(TIF_SYSCALL_TRACE))
diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 55cca1dac431..19ab7b2ea1cd 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -31,7 +31,11 @@ ifdef CONFIG_64BIT
 UTS_MACHINE     := parisc64
 CHECKFLAGS      += -D__LP64__=1 -m64
 WIDTH           := 64
+
+# FIXME: if no default set, should really try to locate dynamically
+ifeq ($(CROSS_COMPILE),)
 CROSS_COMPILE   := hppa64-linux-gnu-
+endif
 else # 32-bit
 WIDTH           :=
 endif
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index d1727584230a..6d99a5fcc090 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -227,6 +227,9 @@ config COMPAT
 config SYSVIPC_COMPAT
         def_bool y if COMPAT && SYSVIPC
 
+config KEYS_COMPAT
+        def_bool y if COMPAT && KEYS
+
 config AUDIT_ARCH
         def_bool y
 
diff --git a/arch/s390/kernel/crash_dump.c b/arch/s390/kernel/crash_dump.c
index 39f8fd4438fc..c383ce440d99 100644
--- a/arch/s390/kernel/crash_dump.c
+++ b/arch/s390/kernel/crash_dump.c
@@ -11,7 +11,6 @@
 #include <linux/module.h>
 #include <linux/gfp.h>
 #include <linux/slab.h>
-#include <linux/crash_dump.h>
 #include <linux/bootmem.h>
 #include <linux/elf.h>
 #include <asm/ipl.h>
diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c
index 5d633019d8f3..50236610de83 100644
--- a/arch/s390/mm/init.c
+++ b/arch/s390/mm/init.c
@@ -223,16 +223,38 @@ void free_initrd_mem(unsigned long start, unsigned long end)
 #ifdef CONFIG_MEMORY_HOTPLUG
 int arch_add_memory(int nid, u64 start, u64 size)
 {
-        struct pglist_data *pgdat;
+        unsigned long zone_start_pfn, zone_end_pfn, nr_pages;
+        unsigned long start_pfn = PFN_DOWN(start);
+        unsigned long size_pages = PFN_DOWN(size);
         struct zone *zone;
         int rc;
 
-        pgdat = NODE_DATA(nid);
-        zone = pgdat->node_zones + ZONE_MOVABLE;
         rc = vmem_add_mapping(start, size);
         if (rc)
                 return rc;
-        rc = __add_pages(nid, zone, PFN_DOWN(start), PFN_DOWN(size));
+        for_each_zone(zone) {
+                if (zone_idx(zone) != ZONE_MOVABLE) {
+                        /* Add range within existing zone limits */
+                        zone_start_pfn = zone->zone_start_pfn;
+                        zone_end_pfn = zone->zone_start_pfn +
+                                       zone->spanned_pages;
+                } else {
+                        /* Add remaining range to ZONE_MOVABLE */
+                        zone_start_pfn = start_pfn;
+                        zone_end_pfn = start_pfn + size_pages;
+                }
+                if (start_pfn < zone_start_pfn || start_pfn >= zone_end_pfn)
+                        continue;
+                nr_pages = (start_pfn + size_pages > zone_end_pfn) ?
+                           zone_end_pfn - start_pfn : size_pages;
+                rc = __add_pages(nid, zone, start_pfn, nr_pages);
+                if (rc)
+                        break;
+                start_pfn += nr_pages;
+                size_pages -= nr_pages;
+                if (!size_pages)
+                        break;
+        }
         if (rc)
                 vmem_remove_mapping(start, size);
         return rc;
diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c
index fd843877e841..39e49091f648 100644
--- a/arch/x86/ia32/ia32_aout.c
+++ b/arch/x86/ia32/ia32_aout.c
@@ -315,6 +315,13 @@ static int load_aout_binary(struct linux_binprm *bprm, struct pt_regs *regs)
         current->mm->free_area_cache = TASK_UNMAPPED_BASE;
         current->mm->cached_hole_size = 0;
 
+        retval = setup_arg_pages(bprm, IA32_STACK_TOP, EXSTACK_DEFAULT);
+        if (retval < 0) {
+                /* Someone check-me: is this error path enough? */
+                send_sig(SIGKILL, current, 0);
+                return retval;
+        }
+
         install_exec_creds(bprm);
         current->flags &= ~PF_FORKNOEXEC;
 
@@ -410,13 +417,6 @@ beyond_if:
 
         set_brk(current->mm->start_brk, current->mm->brk);
 
-        retval = setup_arg_pages(bprm, IA32_STACK_TOP, EXSTACK_DEFAULT);
-        if (retval < 0) {
-                /* Someone check-me: is this error path enough? */
-                send_sig(SIGKILL, current, 0);
-                return retval;
-        }
-
         current->mm->start_stack =
                 (unsigned long)create_aout_tables((char __user *)bprm->p, bprm);
         /* start thread */
diff --git a/arch/x86/include/asm/perf_event.h b/arch/x86/include/asm/perf_event.h
index 096c975e099f..461ce432b1c2 100644
--- a/arch/x86/include/asm/perf_event.h
+++ b/arch/x86/include/asm/perf_event.h
@@ -242,4 +242,12 @@ static inline void perf_get_x86_pmu_capability(struct x86_pmu_capability *cap)
 static inline void perf_events_lapic_init(void) { }
 #endif
 
+#if defined(CONFIG_PERF_EVENTS) && defined(CONFIG_CPU_SUP_AMD)
+ extern void amd_pmu_enable_virt(void);
+ extern void amd_pmu_disable_virt(void);
+#else
+ static inline void amd_pmu_enable_virt(void) { }
+ static inline void amd_pmu_disable_virt(void) { }
+#endif
+
 #endif /* _ASM_X86_PERF_EVENT_H */
diff --git a/arch/x86/kernel/cpu/perf_event.h b/arch/x86/kernel/cpu/perf_event.h
index 8944062f46e2..c30c807ddc72 100644
--- a/arch/x86/kernel/cpu/perf_event.h
+++ b/arch/x86/kernel/cpu/perf_event.h
@@ -147,7 +147,9 @@ struct cpu_hw_events {
         /*
          * AMD specific bits
          */
-        struct amd_nb           *amd_nb;
+        struct amd_nb                   *amd_nb;
+        /* Inverted mask of bits to clear in the perf_ctr ctrl registers */
+        u64                             perf_ctr_virt_mask;
 
         void                            *kfree_on_online;
 };
@@ -417,9 +419,11 @@ void x86_pmu_disable_all(void);
 static inline void __x86_pmu_enable_event(struct hw_perf_event *hwc,
                                           u64 enable_mask)
 {
+        u64 disable_mask = __this_cpu_read(cpu_hw_events.perf_ctr_virt_mask);
+
         if (hwc->extra_reg.reg)
                 wrmsrl(hwc->extra_reg.reg, hwc->extra_reg.config);
-        wrmsrl(hwc->config_base, hwc->config | enable_mask);
+        wrmsrl(hwc->config_base, (hwc->config | enable_mask) & ~disable_mask);
 }
 
 void x86_pmu_enable_all(int added);
diff --git a/arch/x86/kernel/cpu/perf_event_amd.c b/arch/x86/kernel/cpu/perf_event_amd.c
index 0397b23be8e9..67250a52430b 100644
--- a/arch/x86/kernel/cpu/perf_event_amd.c
+++ b/arch/x86/kernel/cpu/perf_event_amd.c
@@ -1,4 +1,5 @@
 #include <linux/perf_event.h>
+#include <linux/export.h>
 #include <linux/types.h>
 #include <linux/init.h>
 #include <linux/slab.h>
@@ -357,7 +358,9 @@ static void amd_pmu_cpu_starting(int cpu)
         struct amd_nb *nb;
         int i, nb_id;
 
-        if (boot_cpu_data.x86_max_cores < 2)
+        cpuc->perf_ctr_virt_mask = AMD_PERFMON_EVENTSEL_HOSTONLY;
+
+        if (boot_cpu_data.x86_max_cores < 2 || boot_cpu_data.x86 == 0x15)
                 return;
 
         nb_id = amd_get_nb_id(cpu);
@@ -587,9 +590,9 @@ static __initconst const struct x86_pmu amd_pmu_f15h = {
         .put_event_constraints  = amd_put_event_constraints,
 
         .cpu_prepare            = amd_pmu_cpu_prepare,
-        .cpu_starting           = amd_pmu_cpu_starting,
         .cpu_dead               = amd_pmu_cpu_dead,
 #endif
+        .cpu_starting           = amd_pmu_cpu_starting,
 };
 
 __init int amd_pmu_init(void)
@@ -621,3 +624,33 @@ __init int amd_pmu_init(void)
 
         return 0;
 }
+
+void amd_pmu_enable_virt(void)
+{
+        struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
+
+        cpuc->perf_ctr_virt_mask = 0;
+
+        /* Reload all events */
+        x86_pmu_disable_all();
+        x86_pmu_enable_all(0);
+}
+EXPORT_SYMBOL_GPL(amd_pmu_enable_virt);
+
+void amd_pmu_disable_virt(void)
+{
+        struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
+
+        /*
+         * We only mask out the Host-only bit so that host-only counting works
+         * when SVM is disabled. If someone sets up a guest-only counter when
+         * SVM is disabled the Guest-only bits still gets set and the counter
+         * will not count anything.
+         */
+        cpuc->perf_ctr_virt_mask = AMD_PERFMON_EVENTSEL_HOSTONLY;
+
+        /* Reload all events */
+        x86_pmu_disable_all();
+        x86_pmu_enable_all(0);
+}
+EXPORT_SYMBOL_GPL(amd_pmu_disable_virt);
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 5fa553babe56..e385214711cb 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -29,6 +29,7 @@
 #include <linux/ftrace_event.h>
 #include <linux/slab.h>
 
+#include <asm/perf_event.h>
 #include <asm/tlbflush.h>
 #include <asm/desc.h>
 #include <asm/kvm_para.h>
@@ -575,6 +576,8 @@ static void svm_hardware_disable(void *garbage)
                 wrmsrl(MSR_AMD64_TSC_RATIO, TSC_RATIO_DEFAULT);
 
         cpu_svm_disable();
+
+        amd_pmu_disable_virt();
 }
 
 static int svm_hardware_enable(void *garbage)
@@ -622,6 +625,8 @@ static int svm_hardware_enable(void *garbage)
 
         svm_init_erratum_383();
 
+        amd_pmu_enable_virt();
+
         return 0;
 }
 
diff --git a/arch/x86/lib/delay.c b/arch/x86/lib/delay.c
index fc45ba887d05..e395693abdb1 100644
--- a/arch/x86/lib/delay.c
+++ b/arch/x86/lib/delay.c
@@ -48,9 +48,9 @@ static void delay_loop(unsigned long loops)
 }
 
 /* TSC based delay: */
-static void delay_tsc(unsigned long loops)
+static void delay_tsc(unsigned long __loops)
 {
-        unsigned long bclock, now;
+        u32 bclock, now, loops = __loops;
         int cpu;
 
         preempt_disable();
diff --git a/arch/x86/mm/hugetlbpage.c b/arch/x86/mm/hugetlbpage.c
index f581a18c0d4d..8ecbb4bba4b3 100644
--- a/arch/x86/mm/hugetlbpage.c
+++ b/arch/x86/mm/hugetlbpage.c
@@ -333,13 +333,15 @@ try_again:
                  * Lookup failure means no vma is above this address,
                  * i.e. return with success:
                  */
-                if (!(vma = find_vma_prev(mm, addr, &prev_vma)))
+                vma = find_vma(mm, addr);
+                if (!vma)
                         return addr;
 
                 /*
                  * new region fits between prev_vma->vm_end and
                  * vma->vm_start, use it:
                  */
+                prev_vma = vma->vm_prev;
                 if (addr + len <= vma->vm_start &&
                             (!prev_vma || (addr >= prev_vma->vm_end))) {
                         /* remember the address as a hint for next time */
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index a312e76063a7..49a5cb55429b 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -60,6 +60,16 @@ static const struct dmi_system_id pci_use_crs_table[] __initconst = {
                         DMI_MATCH(DMI_BIOS_VENDOR, "American Megatrends Inc."),
                 },
         },
+        /* https://bugzilla.kernel.org/show_bug.cgi?id=42619 */
+        {
+                .callback = set_use_crs,
+                .ident = "MSI MS-7253",
+                .matches = {
+                        DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"),
+                        DMI_MATCH(DMI_BOARD_NAME, "MS-7253"),
+                        DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies, LTD"),
+                },
+        },
 
         /* Now for the blacklist.. */
 
@@ -282,9 +292,6 @@ static void add_resources(struct pci_root_info *info)
         int i;
         struct resource *res, *root, *conflict;
 
-        if (!pci_use_crs)
-                return;
-
         coalesce_windows(info, IORESOURCE_MEM);
         coalesce_windows(info, IORESOURCE_IO);
 
@@ -336,8 +343,13 @@ get_current_resources(struct acpi_device *device, int busnum,
         acpi_walk_resources(device->handle, METHOD_NAME__CRS, setup_resource,
                                 &info);
 
-        add_resources(&info);
-        return;
+        if (pci_use_crs) {
+                add_resources(&info);
+
+                return;
+        }
+
+        kfree(info.name);
 
 name_alloc_fail:
         kfree(info.res);