Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

45 files changed, 144 insertions, 100 deletions

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-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/mailbox.c b/arch/arm/mach-omap2/mailbox.c
index 2cc1aa004b94..415a6f1cf419 100644
--- a/arch/arm/mach-omap2/mailbox.c
+++ b/arch/arm/mach-omap2/mailbox.c
@@ -420,8 +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/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 ebc595091312..70de277f5c15 100644
--- a/arch/arm/mach-omap2/omap4-common.c
+++ b/arch/arm/mach-omap2/omap4-common.c
@@ -31,6 +31,7 @@
 
 #include "common.h"
 #include "omap4-sar-layout.h"
+#include <linux/export.h>
 
 #ifdef CONFIG_CACHE_L2X0
 static void __iomem *l2cache_base;
@@ -55,6 +56,7 @@ void omap_bus_sync(void)
 		isb();
 	}
 }
+EXPORT_SYMBOL(omap_bus_sync);
 
 /* Steal one page physical memory for barrier implementation */
 int __init omap_barrier_reserve_memblock(void)
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-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/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 00d6eacab8e4..3352b37b60cf 100644
--- a/arch/arm/mach-pxa/pxa25x.c
+++ b/arch/arm/mach-pxa/pxa25x.c
@@ -208,6 +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 =
@@ -367,7 +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 c1673b3441d4..6bce78edce7a 100644
--- a/arch/arm/mach-pxa/pxa27x.c
+++ b/arch/arm/mach-pxa/pxa27x.c
@@ -229,6 +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
@@ -455,7 +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-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/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-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/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 */