Merge branch 'iommu/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu into x86/urgent

40 files changed, 316 insertions, 897 deletions

diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 4f2e66e29ec..d87f09bc5a5 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -89,7 +89,6 @@ obj-$(CONFIG_EARLY_PRINTK)	+= early_printk.o
 obj-$(CONFIG_HPET_TIMER) 	+= hpet.o
 
 obj-$(CONFIG_K8_NB)		+= k8.o
-obj-$(CONFIG_MGEODE_LX)		+= geode_32.o mfgpt_32.o
 obj-$(CONFIG_DEBUG_RODATA_TEST)	+= test_rodata.o
 obj-$(CONFIG_DEBUG_NX_TEST)	+= test_nx.o
 
diff --git a/arch/x86/kernel/acpi/cstate.c b/arch/x86/kernel/acpi/cstate.c
index 59cdfa4686b..2e837f5080f 100644
--- a/arch/x86/kernel/acpi/cstate.c
+++ b/arch/x86/kernel/acpi/cstate.c
@@ -48,7 +48,7 @@ void acpi_processor_power_init_bm_check(struct acpi_processor_flags *flags,
 	 * P4, Core and beyond CPUs
 	 */
 	if (c->x86_vendor == X86_VENDOR_INTEL &&
-	    (c->x86 > 0xf || (c->x86 == 6 && c->x86_model >= 14)))
+	    (c->x86 > 0xf || (c->x86 == 6 && c->x86_model >= 0x0f)))
 			flags->bm_control = 0;
 }
 EXPORT_SYMBOL(acpi_processor_power_init_bm_check);
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index b990b5cc954..23824fef789 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -19,7 +19,7 @@
 
 #include <linux/pci.h>
 #include <linux/gfp.h>
-#include <linux/bitops.h>
+#include <linux/bitmap.h>
 #include <linux/debugfs.h>
 #include <linux/scatterlist.h>
 #include <linux/dma-mapping.h>
@@ -1162,7 +1162,7 @@ static void dma_ops_free_addresses(struct dma_ops_domain *dom,
 
 	address = (address % APERTURE_RANGE_SIZE) >> PAGE_SHIFT;
 
-	iommu_area_free(range->bitmap, address, pages);
+	bitmap_clear(range->bitmap, address, pages);
 
 }
 
diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c
index 309a52f96e0..fb490ce7dd5 100644
--- a/arch/x86/kernel/amd_iommu_init.c
+++ b/arch/x86/kernel/amd_iommu_init.c
@@ -138,6 +138,11 @@ int amd_iommus_present;
 bool amd_iommu_np_cache __read_mostly;
 
 /*
+ * Set to true if ACPI table parsing and hardware intialization went properly
+ */
+static bool amd_iommu_initialized;
+
+/*
  * List of protection domains - used during resume
  */
 LIST_HEAD(amd_iommu_pd_list);
@@ -929,6 +934,8 @@ static int __init init_iommu_all(struct acpi_table_header *table)
 	}
 	WARN_ON(p != end);
 
+	amd_iommu_initialized = true;
+
 	return 0;
 }
 
@@ -1263,6 +1270,9 @@ static int __init amd_iommu_init(void)
 	if (acpi_table_parse("IVRS", init_iommu_all) != 0)
 		goto free;
 
+	if (!amd_iommu_initialized)
+		goto free;
+
 	if (acpi_table_parse("IVRS", init_memory_definitions) != 0)
 		goto free;
 
@@ -1345,6 +1355,9 @@ void __init amd_iommu_detect(void)
 		iommu_detected = 1;
 		amd_iommu_detected = 1;
 		x86_init.iommu.iommu_init = amd_iommu_init;
+
+		/* Make sure ACS will be enabled */
+		pci_request_acs();
 	}
 }
 
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 98ced709e82..de00c4619a5 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -2432,7 +2432,7 @@ asmlinkage void smp_irq_move_cleanup_interrupt(void)
 			continue;
 
 		cfg = irq_cfg(irq);
-		spin_lock(&desc->lock);
+		raw_spin_lock(&desc->lock);
 
 		if (vector == cfg->vector && cpumask_test_cpu(me, cfg->domain))
 			goto unlock;
@@ -2451,7 +2451,7 @@ asmlinkage void smp_irq_move_cleanup_interrupt(void)
 		}
 		__get_cpu_var(vector_irq)[vector] = -1;
 unlock:
-		spin_unlock(&desc->lock);
+		raw_spin_unlock(&desc->lock);
 	}
 
 	irq_exit();
diff --git a/arch/x86/kernel/apic/nmi.c b/arch/x86/kernel/apic/nmi.c
index 6389432a9db..0159a69396c 100644
--- a/arch/x86/kernel/apic/nmi.c
+++ b/arch/x86/kernel/apic/nmi.c
@@ -361,7 +361,7 @@ void stop_apic_nmi_watchdog(void *unused)
  */
 
 static DEFINE_PER_CPU(unsigned, last_irq_sum);
-static DEFINE_PER_CPU(local_t, alert_counter);
+static DEFINE_PER_CPU(long, alert_counter);
 static DEFINE_PER_CPU(int, nmi_touch);
 
 void touch_nmi_watchdog(void)
@@ -438,8 +438,8 @@ nmi_watchdog_tick(struct pt_regs *regs, unsigned reason)
 		 * Ayiee, looks like this CPU is stuck ...
 		 * wait a few IRQs (5 seconds) before doing the oops ...
 		 */
-		local_inc(&__get_cpu_var(alert_counter));
-		if (local_read(&__get_cpu_var(alert_counter)) == 5 * nmi_hz)
+		__this_cpu_inc(per_cpu_var(alert_counter));
+		if (__this_cpu_read(per_cpu_var(alert_counter)) == 5 * nmi_hz)
 			/*
 			 * die_nmi will return ONLY if NOTIFY_STOP happens..
 			 */
@@ -447,7 +447,7 @@ nmi_watchdog_tick(struct pt_regs *regs, unsigned reason)
 				regs, panic_on_timeout);
 	} else {
 		__get_cpu_var(last_irq_sum) = sum;
-		local_set(&__get_cpu_var(alert_counter), 0);
+		__this_cpu_write(per_cpu_var(alert_counter), 0);
 	}
 
 	/* see if the nmi watchdog went off */
diff --git a/arch/x86/kernel/bios_uv.c b/arch/x86/kernel/bios_uv.c
index 63a88e1f987..b0206a211b0 100644
--- a/arch/x86/kernel/bios_uv.c
+++ b/arch/x86/kernel/bios_uv.c
@@ -101,21 +101,17 @@ s64 uv_bios_get_sn_info(int fc, int *uvtype, long *partid, long *coher,
 }
 
 int
-uv_bios_mq_watchlist_alloc(int blade, unsigned long addr, unsigned int mq_size,
+uv_bios_mq_watchlist_alloc(unsigned long addr, unsigned int mq_size,
 			   unsigned long *intr_mmr_offset)
 {
-	union uv_watchlist_u size_blade;
 	u64 watchlist;
 	s64 ret;
 
-	size_blade.size = mq_size;
-	size_blade.blade = blade;
-
 	/*
 	 * bios returns watchlist number or negative error number.
 	 */
 	ret = (int)uv_bios_call_irqsave(UV_BIOS_WATCHLIST_ALLOC, addr,
-			size_blade.val, (u64)intr_mmr_offset,
+			mq_size, (u64)intr_mmr_offset,
 			(u64)&watchlist, 0);
 	if (ret < BIOS_STATUS_SUCCESS)
 		return ret;
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 0ee9a3254ee..4868e4a951e 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -1095,7 +1095,7 @@ static void clear_all_debug_regs(void)
 
 void __cpuinit cpu_init(void)
 {
-	struct orig_ist *orig_ist;
+	struct orig_ist *oist;
 	struct task_struct *me;
 	struct tss_struct *t;
 	unsigned long v;
@@ -1104,7 +1104,7 @@ void __cpuinit cpu_init(void)
 
 	cpu = stack_smp_processor_id();
 	t = &per_cpu(init_tss, cpu);
-	orig_ist = &per_cpu(orig_ist, cpu);
+	oist = &per_cpu(orig_ist, cpu);
 
 #ifdef CONFIG_NUMA
 	if (cpu != 0 && percpu_read(node_number) == 0 &&
@@ -1145,12 +1145,12 @@ void __cpuinit cpu_init(void)
 	/*
 	 * set up and load the per-CPU TSS
 	 */
-	if (!orig_ist->ist[0]) {
+	if (!oist->ist[0]) {
 		char *estacks = per_cpu(exception_stacks, cpu);
 
 		for (v = 0; v < N_EXCEPTION_STACKS; v++) {
 			estacks += exception_stack_sizes[v];
-			orig_ist->ist[v] = t->x86_tss.ist[v] =
+			oist->ist[v] = t->x86_tss.ist[v] =
 					(unsigned long)estacks;
 		}
 	}
diff --git a/arch/x86/kernel/cpu/cpu_debug.c b/arch/x86/kernel/cpu/cpu_debug.c
index dca325c0399..b368cd86299 100644
--- a/arch/x86/kernel/cpu/cpu_debug.c
+++ b/arch/x86/kernel/cpu/cpu_debug.c
@@ -30,9 +30,9 @@
 #include <asm/apic.h>
 #include <asm/desc.h>
 
-static DEFINE_PER_CPU(struct cpu_cpuX_base [CPU_REG_ALL_BIT], cpu_arr);
-static DEFINE_PER_CPU(struct cpu_private * [MAX_CPU_FILES], priv_arr);
-static DEFINE_PER_CPU(int, cpu_priv_count);
+static DEFINE_PER_CPU(struct cpu_cpuX_base [CPU_REG_ALL_BIT], cpud_arr);
+static DEFINE_PER_CPU(struct cpu_private * [MAX_CPU_FILES], cpud_priv_arr);
+static DEFINE_PER_CPU(int, cpud_priv_count);
 
 static DEFINE_MUTEX(cpu_debug_lock);
 
@@ -531,7 +531,7 @@ static int cpu_create_file(unsigned cpu, unsigned type, unsigned reg,
 
 	/* Already intialized */
 	if (file == CPU_INDEX_BIT)
-		if (per_cpu(cpu_arr[type].init, cpu))
+		if (per_cpu(cpud_arr[type].init, cpu))
 			return 0;
 
 	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
@@ -543,8 +543,8 @@ static int cpu_create_file(unsigned cpu, unsigned type, unsigned reg,
 	priv->reg = reg;
 	priv->file = file;
 	mutex_lock(&cpu_debug_lock);
-	per_cpu(priv_arr[type], cpu) = priv;
-	per_cpu(cpu_priv_count, cpu)++;
+	per_cpu(cpud_priv_arr[type], cpu) = priv;
+	per_cpu(cpud_priv_count, cpu)++;
 	mutex_unlock(&cpu_debug_lock);
 
 	if (file)
@@ -552,10 +552,10 @@ static int cpu_create_file(unsigned cpu, unsigned type, unsigned reg,
 				    dentry, (void *)priv, &cpu_fops);
 	else {
 		debugfs_create_file(cpu_base[type].name, S_IRUGO,
-				    per_cpu(cpu_arr[type].dentry, cpu),
+				    per_cpu(cpud_arr[type].dentry, cpu),
 				    (void *)priv, &cpu_fops);
 		mutex_lock(&cpu_debug_lock);
-		per_cpu(cpu_arr[type].init, cpu) = 1;
+		per_cpu(cpud_arr[type].init, cpu) = 1;
 		mutex_unlock(&cpu_debug_lock);
 	}
 
@@ -615,7 +615,7 @@ static int cpu_init_allreg(unsigned cpu, struct dentry *dentry)
 		if (!is_typeflag_valid(cpu, cpu_base[type].flag))
 			continue;
 		cpu_dentry = debugfs_create_dir(cpu_base[type].name, dentry);
-		per_cpu(cpu_arr[type].dentry, cpu) = cpu_dentry;
+		per_cpu(cpud_arr[type].dentry, cpu) = cpu_dentry;
 
 		if (type < CPU_TSS_BIT)
 			err = cpu_init_msr(cpu, type, cpu_dentry);
@@ -647,11 +647,11 @@ static int cpu_init_cpu(void)
 		err = cpu_init_allreg(cpu, cpu_dentry);
 
 		pr_info("cpu%d(%d) debug files %d\n",
-			cpu, nr_cpu_ids, per_cpu(cpu_priv_count, cpu));
-		if (per_cpu(cpu_priv_count, cpu) > MAX_CPU_FILES) {
+			cpu, nr_cpu_ids, per_cpu(cpud_priv_count, cpu));
+		if (per_cpu(cpud_priv_count, cpu) > MAX_CPU_FILES) {
 			pr_err("Register files count %d exceeds limit %d\n",
-				per_cpu(cpu_priv_count, cpu), MAX_CPU_FILES);
-			per_cpu(cpu_priv_count, cpu) = MAX_CPU_FILES;
+				per_cpu(cpud_priv_count, cpu), MAX_CPU_FILES);
+			per_cpu(cpud_priv_count, cpu) = MAX_CPU_FILES;
 			err = -ENFILE;
 		}
 		if (err)
@@ -676,8 +676,8 @@ static void __exit cpu_debug_exit(void)
 		debugfs_remove_recursive(cpu_debugfs_dir);
 
 	for (cpu = 0; cpu <  nr_cpu_ids; cpu++)
-		for (i = 0; i < per_cpu(cpu_priv_count, cpu); i++)
-			kfree(per_cpu(priv_arr[i], cpu));
+		for (i = 0; i < per_cpu(cpud_priv_count, cpu); i++)
+			kfree(per_cpu(cpud_priv_arr[i], cpu));
 }
 
 module_init(cpu_debug_init);
diff --git a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
index 8b581d3905c..f28decf8dde 100644
--- a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
+++ b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
@@ -68,9 +68,9 @@ struct acpi_cpufreq_data {
 	unsigned int cpu_feature;
 };
 
-static DEFINE_PER_CPU(struct acpi_cpufreq_data *, drv_data);
+static DEFINE_PER_CPU(struct acpi_cpufreq_data *, acfreq_data);
 
-static DEFINE_PER_CPU(struct aperfmperf, old_perf);
+static DEFINE_PER_CPU(struct aperfmperf, acfreq_old_perf);
 
 /* acpi_perf_data is a pointer to percpu data. */
 static struct acpi_processor_performance *acpi_perf_data;
@@ -214,14 +214,14 @@ static u32 get_cur_val(const struct cpumask *mask)
 	if (unlikely(cpumask_empty(mask)))
 		return 0;
 
-	switch (per_cpu(drv_data, cpumask_first(mask))->cpu_feature) {
+	switch (per_cpu(acfreq_data, cpumask_first(mask))->cpu_feature) {
 	case SYSTEM_INTEL_MSR_CAPABLE:
 		cmd.type = SYSTEM_INTEL_MSR_CAPABLE;
 		cmd.addr.msr.reg = MSR_IA32_PERF_STATUS;
 		break;
 	case SYSTEM_IO_CAPABLE:
 		cmd.type = SYSTEM_IO_CAPABLE;
-		perf = per_cpu(drv_data, cpumask_first(mask))->acpi_data;
+		perf = per_cpu(acfreq_data, cpumask_first(mask))->acpi_data;
 		cmd.addr.io.port = perf->control_register.address;
 		cmd.addr.io.bit_width = perf->control_register.bit_width;
 		break;
@@ -268,8 +268,8 @@ static unsigned int get_measured_perf(struct cpufreq_policy *policy,
 	if (smp_call_function_single(cpu, read_measured_perf_ctrs, &perf, 1))
 		return 0;
 
-	ratio = calc_aperfmperf_ratio(&per_cpu(old_perf, cpu), &perf);
-	per_cpu(old_perf, cpu) = perf;
+	ratio = calc_aperfmperf_ratio(&per_cpu(acfreq_old_perf, cpu), &perf);
+	per_cpu(acfreq_old_perf, cpu) = perf;
 
 	retval = (policy->cpuinfo.max_freq * ratio) >> APERFMPERF_SHIFT;
 
@@ -278,7 +278,7 @@ static unsigned int get_measured_perf(struct cpufreq_policy *policy,
 
 static unsigned int get_cur_freq_on_cpu(unsigned int cpu)
 {
-	struct acpi_cpufreq_data *data = per_cpu(drv_data, cpu);
+	struct acpi_cpufreq_data *data = per_cpu(acfreq_data, cpu);
 	unsigned int freq;
 	unsigned int cached_freq;
 
@@ -322,7 +322,7 @@ static unsigned int check_freqs(const struct cpumask *mask, unsigned int freq,
 static int acpi_cpufreq_target(struct cpufreq_policy *policy,
 			       unsigned int target_freq, unsigned int relation)
 {
-	struct acpi_cpufreq_data *data = per_cpu(drv_data, policy->cpu);
+	struct acpi_cpufreq_data *data = per_cpu(acfreq_data, policy->cpu);
 	struct acpi_processor_performance *perf;
 	struct cpufreq_freqs freqs;
 	struct drv_cmd cmd;
@@ -416,7 +416,7 @@ out:
 
 static int acpi_cpufreq_verify(struct cpufreq_policy *policy)
 {
-	struct acpi_cpufreq_data *data = per_cpu(drv_data, policy->cpu);
+	struct acpi_cpufreq_data *data = per_cpu(acfreq_data, policy->cpu);
 
 	dprintk("acpi_cpufreq_verify\n");
 
@@ -574,7 +574,7 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
 		return -ENOMEM;
 
 	data->acpi_data = per_cpu_ptr(acpi_perf_data, cpu);
-	per_cpu(drv_data, cpu) = data;
+	per_cpu(acfreq_data, cpu) = data;
 
 	if (cpu_has(c, X86_FEATURE_CONSTANT_TSC))
 		acpi_cpufreq_driver.flags |= CPUFREQ_CONST_LOOPS;
@@ -725,20 +725,20 @@ err_unreg:
 	acpi_processor_unregister_performance(perf, cpu);
 err_free:
 	kfree(data);
-	per_cpu(drv_data, cpu) = NULL;
+	per_cpu(acfreq_data, cpu) = NULL;
 
 	return result;
 }
 
 static int acpi_cpufreq_cpu_exit(struct cpufreq_policy *policy)
 {
-	struct acpi_cpufreq_data *data = per_cpu(drv_data, policy->cpu);
+	struct acpi_cpufreq_data *data = per_cpu(acfreq_data, policy->cpu);
 
 	dprintk("acpi_cpufreq_cpu_exit\n");
 
 	if (data) {
 		cpufreq_frequency_table_put_attr(policy->cpu);
-		per_cpu(drv_data, policy->cpu) = NULL;
+		per_cpu(acfreq_data, policy->cpu) = NULL;
 		acpi_processor_unregister_performance(data->acpi_data,
 						      policy->cpu);
 		kfree(data);
@@ -749,7 +749,7 @@ static int acpi_cpufreq_cpu_exit(struct cpufreq_policy *policy)
 
 static int acpi_cpufreq_resume(struct cpufreq_policy *policy)
 {
-	struct acpi_cpufreq_data *data = per_cpu(drv_data, policy->cpu);
+	struct acpi_cpufreq_data *data = per_cpu(acfreq_data, policy->cpu);
 
 	dprintk("acpi_cpufreq_resume\n");
 
@@ -764,14 +764,15 @@ static struct freq_attr *acpi_cpufreq_attr[] = {
 };
 
 static struct cpufreq_driver acpi_cpufreq_driver = {
-	.verify = acpi_cpufreq_verify,
-	.target = acpi_cpufreq_target,
-	.init = acpi_cpufreq_cpu_init,
-	.exit = acpi_cpufreq_cpu_exit,
-	.resume = acpi_cpufreq_resume,
-	.name = "acpi-cpufreq",
-	.owner = THIS_MODULE,
-	.attr = acpi_cpufreq_attr,
+	.verify		= acpi_cpufreq_verify,
+	.target		= acpi_cpufreq_target,
+	.bios_limit	= acpi_processor_get_bios_limit,
+	.init		= acpi_cpufreq_cpu_init,
+	.exit		= acpi_cpufreq_cpu_exit,
+	.resume		= acpi_cpufreq_resume,
+	.name		= "acpi-cpufreq",
+	.owner		= THIS_MODULE,
+	.attr		= acpi_cpufreq_attr,
 };
 
 static int __init acpi_cpufreq_init(void)
diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k6.c b/arch/x86/kernel/cpu/cpufreq/powernow-k6.c
index f10dea409f4..cb01dac267d 100644
--- a/arch/x86/kernel/cpu/cpufreq/powernow-k6.c
+++ b/arch/x86/kernel/cpu/cpufreq/powernow-k6.c
@@ -164,7 +164,7 @@ static int powernow_k6_cpu_init(struct cpufreq_policy *policy)
 	}
 
 	/* cpuinfo and default policy values */
-	policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
+	policy->cpuinfo.transition_latency = 200000;
 	policy->cur = busfreq * max_multiplier;
 
 	result = cpufreq_frequency_table_cpuinfo(policy, clock_ratio);
diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k7.c b/arch/x86/kernel/cpu/cpufreq/powernow-k7.c
index d47c775eb0a..9a97116f89e 100644
--- a/arch/x86/kernel/cpu/cpufreq/powernow-k7.c
+++ b/arch/x86/kernel/cpu/cpufreq/powernow-k7.c
@@ -714,14 +714,17 @@ static struct freq_attr *powernow_table_attr[] = {
 };
 
 static struct cpufreq_driver powernow_driver = {
-	.verify	= powernow_verify,
-	.target	= powernow_target,
-	.get	= powernow_get,
-	.init	= powernow_cpu_init,
-	.exit	= powernow_cpu_exit,
-	.name	= "powernow-k7",
-	.owner	= THIS_MODULE,
-	.attr	= powernow_table_attr,
+	.verify		= powernow_verify,
+	.target		= powernow_target,
+	.get		= powernow_get,
+#ifdef CONFIG_X86_POWERNOW_K7_ACPI
+	.bios_limit	= acpi_processor_get_bios_limit,
+#endif
+	.init		= powernow_cpu_init,
+	.exit		= powernow_cpu_exit,
+	.name		= "powernow-k7",
+	.owner		= THIS_MODULE,
+	.attr		= powernow_table_attr,
 };
 
 static int __init powernow_init(void)
diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
index 3f12dabeab5..f125e5c551c 100644
--- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
+++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
@@ -1118,7 +1118,7 @@ static int transition_frequency_pstate(struct powernow_k8_data *data,
 static int powernowk8_target(struct cpufreq_policy *pol,
 		unsigned targfreq, unsigned relation)
 {
-	cpumask_t oldmask;
+	cpumask_var_t oldmask;
 	struct powernow_k8_data *data = per_cpu(powernow_data, pol->cpu);
 	u32 checkfid;
 	u32 checkvid;
@@ -1131,9 +1131,13 @@ static int powernowk8_target(struct cpufreq_policy *pol,
 	checkfid = data->currfid;
 	checkvid = data->currvid;
 
-	/* only run on specific CPU from here on */
-	oldmask = current->cpus_allowed;
-	set_cpus_allowed_ptr(current, &cpumask_of_cpu(pol->cpu));
+	/* only run on specific CPU from here on. */
+	/* This is poor form: use a workqueue or smp_call_function_single */
+	if (!alloc_cpumask_var(&oldmask, GFP_KERNEL))
+		return -ENOMEM;
+
+	cpumask_copy(oldmask, tsk_cpus_allowed(current));
+	set_cpus_allowed_ptr(current, cpumask_of(pol->cpu));
 
 	if (smp_processor_id() != pol->cpu) {
 		printk(KERN_ERR PFX "limiting to cpu %u failed\n", pol->cpu);
@@ -1193,7 +1197,8 @@ static int powernowk8_target(struct cpufreq_policy *pol,
 	ret = 0;
 
 err_out:
-	set_cpus_allowed_ptr(current, &oldmask);
+	set_cpus_allowed_ptr(current, oldmask);
+	free_cpumask_var(oldmask);
 	return ret;
 }
 
@@ -1393,14 +1398,15 @@ static struct freq_attr *powernow_k8_attr[] = {
 };
 
 static struct cpufreq_driver cpufreq_amd64_driver = {
-	.verify = powernowk8_verify,
-	.target = powernowk8_target,
-	.init = powernowk8_cpu_init,
-	.exit = __devexit_p(powernowk8_cpu_exit),
-	.get = powernowk8_get,
-	.name = "powernow-k8",
-	.owner = THIS_MODULE,
-	.attr = powernow_k8_attr,
+	.verify		= powernowk8_verify,
+	.target		= powernowk8_target,
+	.bios_limit	= acpi_processor_get_bios_limit,
+	.init		= powernowk8_cpu_init,
+	.exit		= __devexit_p(powernowk8_cpu_exit),
+	.get		= powernowk8_get,
+	.name		= "powernow-k8",
+	.owner		= THIS_MODULE,
+	.attr		= powernow_k8_attr,
 };
 
 /* driver entry point for init */
diff --git a/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c b/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c
index 3ae5a7a3a50..2ce8e0b5cc5 100644
--- a/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c
+++ b/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c
@@ -39,7 +39,7 @@ static struct pci_dev *speedstep_chipset_dev;
 
 /* speedstep_processor
  */
-static unsigned int speedstep_processor;
+static enum speedstep_processor speedstep_processor;
 
 static u32 pmbase;
 
diff --git a/arch/x86/kernel/cpu/cpufreq/speedstep-lib.c b/arch/x86/kernel/cpu/cpufreq/speedstep-lib.c
index f4c290b8482..ad0083abfa2 100644
--- a/arch/x86/kernel/cpu/cpufreq/speedstep-lib.c
+++ b/arch/x86/kernel/cpu/cpufreq/speedstep-lib.c
@@ -34,7 +34,7 @@ static int relaxed_check;
  *                   GET PROCESSOR CORE SPEED IN KHZ                 *
  *********************************************************************/
 
-static unsigned int pentium3_get_frequency(unsigned int processor)
+static unsigned int pentium3_get_frequency(enum speedstep_processor processor)
 {
 	/* See table 14 of p3_ds.pdf and table 22 of 29834003.pdf */
 	struct {
@@ -227,7 +227,7 @@ static unsigned int pentium4_get_frequency(void)
 
 
 /* Warning: may get called from smp_call_function_single. */
-unsigned int speedstep_get_frequency(unsigned int processor)
+unsigned int speedstep_get_frequency(enum speedstep_processor processor)
 {
 	switch (processor) {
 	case SPEEDSTEP_CPU_PCORE:
@@ -380,7 +380,7 @@ EXPORT_SYMBOL_GPL(speedstep_detect_processor);
  *                     DETECT SPEEDSTEP SPEEDS                       *
  *********************************************************************/
 
-unsigned int speedstep_get_freqs(unsigned int processor,
+unsigned int speedstep_get_freqs(enum speedstep_processor processor,
 				  unsigned int *low_speed,
 				  unsigned int *high_speed,
 				  unsigned int *transition_latency,
diff --git a/arch/x86/kernel/cpu/cpufreq/speedstep-lib.h b/arch/x86/kernel/cpu/cpufreq/speedstep-lib.h
index 2b6c04e5a30..70d9cea1219 100644
--- a/arch/x86/kernel/cpu/cpufreq/speedstep-lib.h
+++ b/arch/x86/kernel/cpu/cpufreq/speedstep-lib.h
@@ -11,18 +11,18 @@
 
 
 /* processors */
-
-#define SPEEDSTEP_CPU_PIII_C_EARLY	0x00000001  /* Coppermine core */
-#define SPEEDSTEP_CPU_PIII_C		0x00000002  /* Coppermine core */
-#define SPEEDSTEP_CPU_PIII_T		0x00000003  /* Tualatin core */
-#define SPEEDSTEP_CPU_P4M		0x00000004  /* P4-M  */
-
+enum speedstep_processor {
+	SPEEDSTEP_CPU_PIII_C_EARLY = 0x00000001,  /* Coppermine core */
+	SPEEDSTEP_CPU_PIII_C	   = 0x00000002,  /* Coppermine core */
+	SPEEDSTEP_CPU_PIII_T	   = 0x00000003,  /* Tualatin core */
+	SPEEDSTEP_CPU_P4M	   = 0x00000004,  /* P4-M  */
 /* the following processors are not speedstep-capable and are not auto-detected
  * in speedstep_detect_processor(). However, their speed can be detected using
  * the speedstep_get_frequency() call. */
-#define SPEEDSTEP_CPU_PM		0xFFFFFF03  /* Pentium M  */
-#define SPEEDSTEP_CPU_P4D		0xFFFFFF04  /* desktop P4  */
-#define SPEEDSTEP_CPU_PCORE		0xFFFFFF05  /* Core */
+	SPEEDSTEP_CPU_PM	   = 0xFFFFFF03,  /* Pentium M  */
+	SPEEDSTEP_CPU_P4D	   = 0xFFFFFF04,  /* desktop P4  */
+	SPEEDSTEP_CPU_PCORE	   = 0xFFFFFF05,  /* Core */
+};
 
 /* speedstep states -- only two of them */
 
@@ -31,10 +31,10 @@
 
 
 /* detect a speedstep-capable processor */
-extern unsigned int speedstep_detect_processor (void);
+extern enum speedstep_processor speedstep_detect_processor(void);
 
 /* detect the current speed (in khz) of the processor */
-extern unsigned int speedstep_get_frequency(unsigned int processor);
+extern unsigned int speedstep_get_frequency(enum speedstep_processor processor);
 
 
 /* detect the low and high speeds of the processor. The callback
@@ -42,7 +42,7 @@ extern unsigned int speedstep_get_frequency(unsigned int processor);
  * SPEEDSTEP_LOW; the second argument is zero so that no
  * cpufreq_notify_transition calls are initiated.
  */
-extern unsigned int speedstep_get_freqs(unsigned int processor,
+extern unsigned int speedstep_get_freqs(enum speedstep_processor processor,
 	unsigned int *low_speed,
 	unsigned int *high_speed,
 	unsigned int *transition_latency,
diff --git a/arch/x86/kernel/cpu/cpufreq/speedstep-smi.c b/arch/x86/kernel/cpu/cpufreq/speedstep-smi.c
index befea088e4f..04d73c114e4 100644
--- a/arch/x86/kernel/cpu/cpufreq/speedstep-smi.c
+++ b/arch/x86/kernel/cpu/cpufreq/speedstep-smi.c
@@ -35,7 +35,7 @@ static int smi_cmd;
 static unsigned int smi_sig;
 
 /* info about the processor */
-static unsigned int speedstep_processor;
+static enum speedstep_processor speedstep_processor;
 
 /*
  * There are only two frequency states for each processor. Values
diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c
index 63ada177b40..fc6c8ef92dc 100644
--- a/arch/x86/kernel/cpu/intel_cacheinfo.c
+++ b/arch/x86/kernel/cpu/intel_cacheinfo.c
@@ -499,8 +499,8 @@ unsigned int __cpuinit init_intel_cacheinfo(struct cpuinfo_x86 *c)
 #ifdef CONFIG_SYSFS
 
 /* pointer to _cpuid4_info array (for each cache leaf) */
-static DEFINE_PER_CPU(struct _cpuid4_info *, cpuid4_info);
-#define CPUID4_INFO_IDX(x, y)	(&((per_cpu(cpuid4_info, x))[y]))
+static DEFINE_PER_CPU(struct _cpuid4_info *, ici_cpuid4_info);
+#define CPUID4_INFO_IDX(x, y)	(&((per_cpu(ici_cpuid4_info, x))[y]))
 
 #ifdef CONFIG_SMP
 static void __cpuinit cache_shared_cpu_map_setup(unsigned int cpu, int index)
@@ -512,7 +512,7 @@ static void __cpuinit cache_shared_cpu_map_setup(unsigned int cpu, int index)
 
 	if ((index == 3) && (c->x86_vendor == X86_VENDOR_AMD)) {
 		for_each_cpu(i, c->llc_shared_map) {
-			if (!per_cpu(cpuid4_info, i))
+			if (!per_cpu(ici_cpuid4_info, i))
 				continue;
 			this_leaf = CPUID4_INFO_IDX(i, index);
 			for_each_cpu(sibling, c->llc_shared_map) {
@@ -536,7 +536,7 @@ static void __cpuinit cache_shared_cpu_map_setup(unsigned int cpu, int index)
 			    c->apicid >> index_msb) {
 				cpumask_set_cpu(i,
 					to_cpumask(this_leaf->shared_cpu_map));
-				if (i != cpu && per_cpu(cpuid4_info, i))  {
+				if (i != cpu && per_cpu(ici_cpuid4_info, i))  {
 					sibling_leaf =
 						CPUID4_INFO_IDX(i, index);
 					cpumask_set_cpu(cpu, to_cpumask(
@@ -575,8 +575,8 @@ static void __cpuinit free_cache_attributes(unsigned int cpu)
 	for (i = 0; i < num_cache_leaves; i++)
 		cache_remove_shared_cpu_map(cpu, i);
 
-	kfree(per_cpu(cpuid4_info, cpu));
-	per_cpu(cpuid4_info, cpu) = NULL;
+	kfree(per_cpu(ici_cpuid4_info, cpu));
+	per_cpu(ici_cpuid4_info, cpu) = NULL;
 }
 
 static int
@@ -615,15 +615,15 @@ static int __cpuinit detect_cache_attributes(unsigned int cpu)
 	if (num_cache_leaves == 0)
 		return -ENOENT;
 
-	per_cpu(cpuid4_info, cpu) = kzalloc(
+	per_cpu(ici_cpuid4_info, cpu) = kzalloc(
 	    sizeof(struct _cpuid4_info) * num_cache_leaves, GFP_KERNEL);
-	if (per_cpu(cpuid4_info, cpu) == NULL)
+	if (per_cpu(ici_cpuid4_info, cpu) == NULL)
 		return -ENOMEM;
 
 	smp_call_function_single(cpu, get_cpu_leaves, &retval, true);
 	if (retval) {
-		kfree(per_cpu(cpuid4_info, cpu));
-		per_cpu(cpuid4_info, cpu) = NULL;
+		kfree(per_cpu(ici_cpuid4_info, cpu));
+		per_cpu(ici_cpuid4_info, cpu) = NULL;
 	}
 
 	return retval;
@@ -635,7 +635,7 @@ static int __cpuinit detect_cache_attributes(unsigned int cpu)
 extern struct sysdev_class cpu_sysdev_class; /* from drivers/base/cpu.c */
 
 /* pointer to kobject for cpuX/cache */
-static DEFINE_PER_CPU(struct kobject *, cache_kobject);
+static DEFINE_PER_CPU(struct kobject *, ici_cache_kobject);
 
 struct _index_kobject {
 	struct kobject kobj;
@@ -644,8 +644,8 @@ struct _index_kobject {
 };
 
 /* pointer to array of kobjects for cpuX/cache/indexY */
-static DEFINE_PER_CPU(struct _index_kobject *, index_kobject);
-#define INDEX_KOBJECT_PTR(x, y)		(&((per_cpu(index_kobject, x))[y]))
+static DEFINE_PER_CPU(struct _index_kobject *, ici_index_kobject);
+#define INDEX_KOBJECT_PTR(x, y)		(&((per_cpu(ici_index_kobject, x))[y]))
 
 #define show_one_plus(file_name, object, val)				\
 static ssize_t show_##file_name						\
@@ -864,10 +864,10 @@ static struct kobj_type ktype_percpu_entry = {
 
 static void __cpuinit cpuid4_cache_sysfs_exit(unsigned int cpu)
 {
-	kfree(per_cpu(cache_kobject, cpu));
-	kfree(per_cpu(index_kobject, cpu));
-	per_cpu(cache_kobject, cpu) = NULL;
-	per_cpu(index_kobject, cpu) = NULL;
+	kfree(per_cpu(ici_cache_kobject, cpu));
+	kfree(per_cpu(ici_index_kobject, cpu));
+	per_cpu(ici_cache_kobject, cpu) = NULL;
+	per_cpu(ici_index_kobject, cpu) = NULL;
 	free_cache_attributes(cpu);
 }
 
@@ -883,14 +883,14 @@ static int __cpuinit cpuid4_cache_sysfs_init(unsigned int cpu)
 		return err;
 
 	/* Allocate all required memory */
-	per_cpu(cache_kobject, cpu) =
+	per_cpu(ici_cache_kobject, cpu) =
 		kzalloc(sizeof(struct kobject), GFP_KERNEL);
-	if (unlikely(per_cpu(cache_kobject, cpu) == NULL))
+	if (unlikely(per_cpu(ici_cache_kobject, cpu) == NULL))
 		goto err_out;
 
-	per_cpu(index_kobject, cpu) = kzalloc(
+	per_cpu(ici_index_kobject, cpu) = kzalloc(
 	    sizeof(struct _index_kobject) * num_cache_leaves, GFP_KERNEL);
-	if (unlikely(per_cpu(index_kobject, cpu) == NULL))
+	if (unlikely(per_cpu(ici_index_kobject, cpu) == NULL))
 		goto err_out;
 
 	return 0;
@@ -914,7 +914,7 @@ static int __cpuinit cache_add_dev(struct sys_device * sys_dev)
 	if (unlikely(retval < 0))
 		return retval;
 
-	retval = kobject_init_and_add(per_cpu(cache_kobject, cpu),
+	retval = kobject_init_and_add(per_cpu(ici_cache_kobject, cpu),
 				      &ktype_percpu_entry,
 				      &sys_dev->kobj, "%s", "cache");
 	if (retval < 0) {
@@ -928,12 +928,12 @@ static int __cpuinit cache_add_dev(struct sys_device * sys_dev)
 		this_object->index = i;
 		retval = kobject_init_and_add(&(this_object->kobj),
 					      &ktype_cache,
-					      per_cpu(cache_kobject, cpu),
+					      per_cpu(ici_cache_kobject, cpu),
 					      "index%1lu", i);
 		if (unlikely(retval)) {
 			for (j = 0; j < i; j++)
 				kobject_put(&(INDEX_KOBJECT_PTR(cpu, j)->kobj));
-			kobject_put(per_cpu(cache_kobject, cpu));
+			kobject_put(per_cpu(ici_cache_kobject, cpu));
 			cpuid4_cache_sysfs_exit(cpu);
 			return retval;
 		}
@@ -941,7 +941,7 @@ static int __cpuinit cache_add_dev(struct sys_device * sys_dev)
 	}
 	cpumask_set_cpu(cpu, to_cpumask(cache_dev_map));
 
-	kobject_uevent(per_cpu(cache_kobject, cpu), KOBJ_ADD);
+	kobject_uevent(per_cpu(ici_cache_kobject, cpu), KOBJ_ADD);
 	return 0;
 }
 
@@ -950,7 +950,7 @@ static void __cpuinit cache_remove_dev(struct sys_device * sys_dev)
 	unsigned int cpu = sys_dev->id;
 	unsigned long i;
 
-	if (per_cpu(cpuid4_info, cpu) == NULL)
+	if (per_cpu(ici_cpuid4_info, cpu) == NULL)
 		return;
 	if (!cpumask_test_cpu(cpu, to_cpumask(cache_dev_map)))
 		return;
@@ -958,7 +958,7 @@ static void __cpuinit cache_remove_dev(struct sys_device * sys_dev)
 
 	for (i = 0; i < num_cache_leaves; i++)
 		kobject_put(&(INDEX_KOBJECT_PTR(cpu, i)->kobj));
-	kobject_put(per_cpu(cache_kobject, cpu));
+	kobject_put(per_cpu(ici_cache_kobject, cpu));
 	cpuid4_cache_sysfs_exit(cpu);
 }
 
diff --git a/arch/x86/kernel/cpu/mtrr/if.c b/arch/x86/kernel/cpu/mtrr/if.c
index 3c1b12d461d..e006e56f699 100644
--- a/arch/x86/kernel/cpu/mtrr/if.c
+++ b/arch/x86/kernel/cpu/mtrr/if.c
@@ -4,6 +4,7 @@
 #include <linux/proc_fs.h>
 #include <linux/module.h>
 #include <linux/ctype.h>
+#include <linux/string.h>
 #include <linux/init.h>
 
 #define LINE_SIZE 80
@@ -133,8 +134,7 @@ mtrr_write(struct file *file, const char __user *buf, size_t len, loff_t * ppos)
 		return -EINVAL;
 
 	base = simple_strtoull(line + 5, &ptr, 0);
-	while (isspace(*ptr))
-		ptr++;
+	ptr = skip_spaces(ptr);
 
 	if (strncmp(ptr, "size=", 5))
 		return -EINVAL;
@@ -142,14 +142,11 @@ mtrr_write(struct file *file, const char __user *buf, size_t len, loff_t * ppos)
 	size = simple_strtoull(ptr + 5, &ptr, 0);
 	if ((base & 0xfff) || (size & 0xfff))
 		return -EINVAL;
-	while (isspace(*ptr))
-		ptr++;
+	ptr = skip_spaces(ptr);
 
 	if (strncmp(ptr, "type=", 5))
 		return -EINVAL;
-	ptr += 5;
-	while (isspace(*ptr))
-		ptr++;
+	ptr = skip_spaces(ptr + 5);
 
 	for (i = 0; i < MTRR_NUM_TYPES; ++i) {
 		if (strcmp(ptr, mtrr_strings[i]))
diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index ab1a8a89b98..45506d5dd8d 100644
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -1632,6 +1632,7 @@ static void intel_pmu_drain_bts_buffer(struct cpu_hw_events *cpuc)
 
 	data.period	= event->hw.last_period;
 	data.addr	= 0;
+	data.raw	= NULL;
 	regs.ip		= 0;
 
 	/*
@@ -1749,6 +1750,7 @@ static int p6_pmu_handle_irq(struct pt_regs *regs)
 	u64 val;
 
 	data.addr = 0;
+	data.raw = NULL;
 
 	cpuc = &__get_cpu_var(cpu_hw_events);
 
@@ -1794,6 +1796,7 @@ static int intel_pmu_handle_irq(struct pt_regs *regs)
 	u64 ack, status;
 
 	data.addr = 0;
+	data.raw = NULL;
 
 	cpuc = &__get_cpu_var(cpu_hw_events);
 
@@ -1857,6 +1860,7 @@ static int amd_pmu_handle_irq(struct pt_regs *regs)
 	u64 val;
 
 	data.addr = 0;
+	data.raw = NULL;
 
 	cpuc = &__get_cpu_var(cpu_hw_events);
 
@@ -2062,12 +2066,6 @@ static __init int p6_pmu_init(void)
 
 	x86_pmu = p6_pmu;
 
-	if (!cpu_has_apic) {
-		pr_info("no APIC, boot with the \"lapic\" boot parameter to force-enable it.\n");
-		pr_info("no hardware sampling interrupt available.\n");
-		x86_pmu.apic = 0;
-	}
-
 	return 0;
 }
 
@@ -2159,6 +2157,16 @@ static __init int amd_pmu_init(void)
 	return 0;
 }
 
+static void __init pmu_check_apic(void)
+{
+	if (cpu_has_apic)
+		return;
+
+	x86_pmu.apic = 0;
+	pr_info("no APIC, boot with the \"lapic\" boot parameter to force-enable it.\n");
+	pr_info("no hardware sampling interrupt available.\n");
+}
+
 void __init init_hw_perf_events(void)
 {
 	int err;
@@ -2180,6 +2188,8 @@ void __init init_hw_perf_events(void)
 		return;
 	}
 
+	pmu_check_apic();
+
 	pr_cont("%s PMU driver.\n", x86_pmu.name);
 
 	if (x86_pmu.num_events > X86_PMC_MAX_GENERIC) {
@@ -2287,7 +2297,7 @@ void callchain_store(struct perf_callchain_entry *entry, u64 ip)
 
 static DEFINE_PER_CPU(struct perf_callchain_entry, pmc_irq_entry);
 static DEFINE_PER_CPU(struct perf_callchain_entry, pmc_nmi_entry);
-static DEFINE_PER_CPU(int, in_nmi_frame);
+static DEFINE_PER_CPU(int, in_ignored_frame);
 
 
 static void
@@ -2303,8 +2313,9 @@ static void backtrace_warning(void *data, char *msg)
 
 static int backtrace_stack(void *data, char *name)
 {
-	per_cpu(in_nmi_frame, smp_processor_id()) =
-			x86_is_stack_id(NMI_STACK, name);
+	per_cpu(in_ignored_frame, smp_processor_id()) =
+			x86_is_stack_id(NMI_STACK, name) ||
+			x86_is_stack_id(DEBUG_STACK, name);
 
 	return 0;
 }
@@ -2313,7 +2324,7 @@ static void backtrace_address(void *data, unsigned long addr, int reliable)
 {
 	struct perf_callchain_entry *entry = data;
 
-	if (per_cpu(in_nmi_frame, smp_processor_id()))
+	if (per_cpu(in_ignored_frame, smp_processor_id()))
 		return;
 
 	if (reliable)
diff --git a/arch/x86/kernel/ds.c b/arch/x86/kernel/ds.c
index ef42a038f1a..1c47390dd0e 100644
--- a/arch/x86/kernel/ds.c
+++ b/arch/x86/kernel/ds.c
@@ -265,13 +265,13 @@ struct ds_context {
 	int			cpu;
 };
 
-static DEFINE_PER_CPU(struct ds_context *, cpu_context);
+static DEFINE_PER_CPU(struct ds_context *, cpu_ds_context);
 
 
 static struct ds_context *ds_get_context(struct task_struct *task, int cpu)
 {
 	struct ds_context **p_context =
-		(task ? &task->thread.ds_ctx : &per_cpu(cpu_context, cpu));
+		(task ? &task->thread.ds_ctx : &per_cpu(cpu_ds_context, cpu));
 	struct ds_context *context = NULL;
 	struct ds_context *new_context = NULL;
 
diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c
index b8ce165dde5..0a0aa1cec8f 100644
--- a/arch/x86/kernel/dumpstack.c
+++ b/arch/x86/kernel/dumpstack.c
@@ -188,7 +188,7 @@ void dump_stack(void)
 }
 EXPORT_SYMBOL(dump_stack);
 
-static raw_spinlock_t die_lock = __RAW_SPIN_LOCK_UNLOCKED;
+static arch_spinlock_t die_lock = __ARCH_SPIN_LOCK_UNLOCKED;
 static int die_owner = -1;
 static unsigned int die_nest_count;
 
@@ -207,11 +207,11 @@ unsigned __kprobes long oops_begin(void)
 	/* racy, but better than risking deadlock. */
 	raw_local_irq_save(flags);
 	cpu = smp_processor_id();
-	if (!__raw_spin_trylock(&die_lock)) {
+	if (!arch_spin_trylock(&die_lock)) {
 		if (cpu == die_owner)
 			/* nested oops. should stop eventually */;
 		else
-			__raw_spin_lock(&die_lock);
+			arch_spin_lock(&die_lock);
 	}
 	die_nest_count++;
 	die_owner = cpu;
@@ -231,7 +231,7 @@ void __kprobes oops_end(unsigned long flags, struct pt_regs *regs, int signr)
 	die_nest_count--;
 	if (!die_nest_count)
 		/* Nest count reaches zero, release the lock. */
-		__raw_spin_unlock(&die_lock);
+		arch_spin_unlock(&die_lock);
 	raw_local_irq_restore(flags);
 	oops_exit();
 
diff --git a/arch/x86/kernel/dumpstack_64.c b/arch/x86/kernel/dumpstack_64.c
index 8e740934bd1..b13af53883a 100644
--- a/arch/x86/kernel/dumpstack_64.c
+++ b/arch/x86/kernel/dumpstack_64.c
@@ -103,6 +103,35 @@ static unsigned long *in_exception_stack(unsigned cpu, unsigned long stack,
 	return NULL;
 }
 
+static inline int
+in_irq_stack(unsigned long *stack, unsigned long *irq_stack,
+	     unsigned long *irq_stack_end)
+{
+	return (stack >= irq_stack && stack < irq_stack_end);
+}
+
+/*
+ * We are returning from the irq stack and go to the previous one.
+ * If the previous stack is also in the irq stack, then bp in the first
+ * frame of the irq stack points to the previous, interrupted one.
+ * Otherwise we have another level of indirection: We first save
+ * the bp of the previous stack, then we switch the stack to the irq one
+ * and save a new bp that links to the previous one.
+ * (See save_args())
+ */
+static inline unsigned long
+fixup_bp_irq_link(unsigned long bp, unsigned long *stack,
+		  unsigned long *irq_stack, unsigned long *irq_stack_end)
+{
+#ifdef CONFIG_FRAME_POINTER
+	struct stack_frame *frame = (struct stack_frame *)bp;
+
+	if (!in_irq_stack(stack, irq_stack, irq_stack_end))
+		return (unsigned long)frame->next_frame;
+#endif
+	return bp;
+}
+
 /*
  * x86-64 can have up to three kernel stacks:
  * process stack
@@ -175,7 +204,7 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
 			irq_stack = irq_stack_end -
 				(IRQ_STACK_SIZE - 64) / sizeof(*irq_stack);
 
-			if (stack >= irq_stack && stack < irq_stack_end) {
+			if (in_irq_stack(stack, irq_stack, irq_stack_end)) {
 				if (ops->stack(data, "IRQ") < 0)
 					break;
 				bp = print_context_stack(tinfo, stack, bp,
@@ -186,6 +215,8 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
 				 * pointer (index -1 to end) in the IRQ stack:
 				 */
 				stack = (unsigned long *) (irq_stack_end[-1]);
+				bp = fixup_bp_irq_link(bp, stack, irq_stack,
+						       irq_stack_end);
 				irq_stack_end = NULL;
 				ops->stack(data, "EOI");
 				continue;
diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index 73d9b2c0e21..0697ff13983 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -1076,10 +1076,10 @@ ENTRY(\sym)
 	TRACE_IRQS_OFF
 	movq %rsp,%rdi		/* pt_regs pointer */
 	xorl %esi,%esi		/* no error code */
-	PER_CPU(init_tss, %rbp)
-	subq $EXCEPTION_STKSZ, TSS_ist + (\ist - 1) * 8(%rbp)
+	PER_CPU(init_tss, %r12)
+	subq $EXCEPTION_STKSZ, TSS_ist + (\ist - 1) * 8(%r12)
 	call \do_sym
-	addq $EXCEPTION_STKSZ, TSS_ist + (\ist - 1) * 8(%rbp)
+	addq $EXCEPTION_STKSZ, TSS_ist + (\ist - 1) * 8(%r12)
 	jmp paranoid_exit	/* %ebx: no swapgs flag */
 	CFI_ENDPROC
 END(\sym)
diff --git a/arch/x86/kernel/geode_32.c b/arch/x86/kernel/geode_32.c
deleted file mode 100644
index 9b08e852fd1..00000000000
--- a/arch/x86/kernel/geode_32.c
+++ /dev/null
@@ -1,196 +0,0 @@
-/*
- * AMD Geode southbridge support code
- * Copyright (C) 2006, Advanced Micro Devices, Inc.
- * Copyright (C) 2007, Andres Salomon <dilinger@debian.org>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public License
- * as published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/ioport.h>
-#include <linux/io.h>
-#include <asm/msr.h>
-#include <asm/geode.h>
-
-static struct {
-	char *name;
-	u32 msr;
-	int size;
-	u32 base;
-} lbars[] = {
-	{ "geode-pms",   MSR_LBAR_PMS, LBAR_PMS_SIZE, 0 },
-	{ "geode-acpi",  MSR_LBAR_ACPI, LBAR_ACPI_SIZE, 0 },
-	{ "geode-gpio",  MSR_LBAR_GPIO, LBAR_GPIO_SIZE, 0 },
-	{ "geode-mfgpt", MSR_LBAR_MFGPT, LBAR_MFGPT_SIZE, 0 }
-};
-
-static void __init init_lbars(void)
-{
-	u32 lo, hi;
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(lbars); i++) {
-		rdmsr(lbars[i].msr, lo, hi);
-		if (hi & 0x01)
-			lbars[i].base = lo & 0x0000ffff;
-
-		if (lbars[i].base == 0)
-			printk(KERN_ERR "geode:  Couldn't initialize '%s'\n",
-					lbars[i].name);
-	}
-}
-
-int geode_get_dev_base(unsigned int dev)
-{
-	BUG_ON(dev >= ARRAY_SIZE(lbars));
-	return lbars[dev].base;
-}
-EXPORT_SYMBOL_GPL(geode_get_dev_base);
-
-/* === GPIO API === */
-
-void geode_gpio_set(u32 gpio, unsigned int reg)
-{
-	u32 base = geode_get_dev_base(GEODE_DEV_GPIO);
-
-	if (!base)
-		return;
-
-	/* low bank register */
-	if (gpio & 0xFFFF)
-		outl(gpio & 0xFFFF, base + reg);
-	/* high bank register */
-	gpio >>= 16;
-	if (gpio)
-		outl(gpio, base + 0x80 + reg);
-}
-EXPORT_SYMBOL_GPL(geode_gpio_set);
-
-void geode_gpio_clear(u32 gpio, unsigned int reg)
-{
-	u32 base = geode_get_dev_base(GEODE_DEV_GPIO);
-
-	if (!base)
-		return;
-
-	/* low bank register */
-	if (gpio & 0xFFFF)
-		outl((gpio & 0xFFFF) << 16, base + reg);
-	/* high bank register */
-	gpio &= (0xFFFF << 16);
-	if (gpio)
-		outl(gpio, base + 0x80 + reg);
-}
-EXPORT_SYMBOL_GPL(geode_gpio_clear);
-
-int geode_gpio_isset(u32 gpio, unsigned int reg)
-{
-	u32 base = geode_get_dev_base(GEODE_DEV_GPIO);
-	u32 val;
-
-	if (!base)
-		return 0;
-
-	/* low bank register */
-	if (gpio & 0xFFFF) {
-		val = inl(base + reg) & (gpio & 0xFFFF);
-		if ((gpio & 0xFFFF) == val)
-			return 1;
-	}
-	/* high bank register */
-	gpio >>= 16;
-	if (gpio) {
-		val = inl(base + 0x80 + reg) & gpio;
-		if (gpio == val)
-			return 1;
-	}
-	return 0;
-}
-EXPORT_SYMBOL_GPL(geode_gpio_isset);
-
-void geode_gpio_set_irq(unsigned int group, unsigned int irq)
-{
-	u32 lo, hi;
-
-	if (group > 7 || irq > 15)
-		return;
-
-	rdmsr(MSR_PIC_ZSEL_HIGH, lo, hi);
-
-	lo &= ~(0xF << (group * 4));
-	lo |= (irq & 0xF) << (group * 4);
-
-	wrmsr(MSR_PIC_ZSEL_HIGH, lo, hi);
-}
-EXPORT_SYMBOL_GPL(geode_gpio_set_irq);
-
-void geode_gpio_setup_event(unsigned int gpio, int pair, int pme)
-{
-	u32 base = geode_get_dev_base(GEODE_DEV_GPIO);
-	u32 offset, shift, val;
-
-	if (gpio >= 24)
-		offset = GPIO_MAP_W;
-	else if (gpio >= 16)
-		offset = GPIO_MAP_Z;
-	else if (gpio >= 8)
-		offset = GPIO_MAP_Y;
-	else
-		offset = GPIO_MAP_X;
-
-	shift = (gpio % 8) * 4;
-
-	val = inl(base + offset);
-
-	/* Clear whatever was there before */
-	val &= ~(0xF << shift);
-
-	/* And set the new value */
-
-	val |= ((pair & 7) << shift);
-
-	/* Set the PME bit if this is a PME event */
-
-	if (pme)
-		val |= (1 << (shift + 3));
-
-	outl(val, base + offset);
-}
-EXPORT_SYMBOL_GPL(geode_gpio_setup_event);
-
-int geode_has_vsa2(void)
-{
-	static int has_vsa2 = -1;
-
-	if (has_vsa2 == -1) {
-		u16 val;
-
-		/*
-		 * The VSA has virtual registers that we can query for a
-		 * signature.
-		 */
-		outw(VSA_VR_UNLOCK, VSA_VRC_INDEX);
-		outw(VSA_VR_SIGNATURE, VSA_VRC_INDEX);
-
-		val = inw(VSA_VRC_DATA);
-		has_vsa2 = (val == AMD_VSA_SIG || val == GSW_VSA_SIG);
-	}
-
-	return has_vsa2;
-}
-EXPORT_SYMBOL_GPL(geode_has_vsa2);
-
-static int __init geode_southbridge_init(void)
-{
-	if (!is_geode())
-		return -ENODEV;
-
-	init_lbars();
-	(void) mfgpt_timer_setup();
-	return 0;
-}
-
-postcore_initcall(geode_southbridge_init);
diff --git a/arch/x86/kernel/hw_breakpoint.c b/arch/x86/kernel/hw_breakpoint.c
index d42f65ac492..05d5fec64a9 100644
--- a/arch/x86/kernel/hw_breakpoint.c
+++ b/arch/x86/kernel/hw_breakpoint.c
@@ -362,8 +362,7 @@ int arch_validate_hwbkpt_settings(struct perf_event *bp,
 		return ret;
 	}
 
-	if (bp->callback)
-		ret = arch_store_info(bp);
+	ret = arch_store_info(bp);
 
 	if (ret < 0)
 		return ret;
@@ -519,7 +518,7 @@ static int __kprobes hw_breakpoint_handler(struct die_args *args)
 			break;
 		}
 
-		(bp->callback)(bp, args->regs);
+		perf_bp_event(bp, args->regs);
 
 		rcu_read_unlock();
 	}
diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c
index 664bcb7384a..91fd0c70a18 100644
--- a/arch/x86/kernel/irq.c
+++ b/arch/x86/kernel/irq.c
@@ -149,7 +149,7 @@ int show_interrupts(struct seq_file *p, void *v)
 	if (!desc)
 		return 0;
 
-	spin_lock_irqsave(&desc->lock, flags);
+	raw_spin_lock_irqsave(&desc->lock, flags);
 	for_each_online_cpu(j)
 		any_count |= kstat_irqs_cpu(i, j);
 	action = desc->action;
@@ -170,7 +170,7 @@ int show_interrupts(struct seq_file *p, void *v)
 
 	seq_putc(p, '\n');
 out:
-	spin_unlock_irqrestore(&desc->lock, flags);
+	raw_spin_unlock_irqrestore(&desc->lock, flags);
 	return 0;
 }
 
@@ -294,12 +294,12 @@ void fixup_irqs(void)
 			continue;
 
 		/* interrupt's are disabled at this point */
-		spin_lock(&desc->lock);
+		raw_spin_lock(&desc->lock);
 
 		affinity = desc->affinity;
 		if (!irq_has_action(irq) ||
 		    cpumask_equal(affinity, cpu_online_mask)) {
-			spin_unlock(&desc->lock);
+			raw_spin_unlock(&desc->lock);
 			continue;
 		}
 
@@ -326,7 +326,7 @@ void fixup_irqs(void)
 		if (!(desc->status & IRQ_MOVE_PCNTXT) && desc->chip->unmask)
 			desc->chip->unmask(irq);
 
-		spin_unlock(&desc->lock);
+		raw_spin_unlock(&desc->lock);
 
 		if (break_affinity && set_affinity)
 			printk("Broke affinity for irq %i\n", irq);
@@ -356,10 +356,10 @@ void fixup_irqs(void)
 			irq = __get_cpu_var(vector_irq)[vector];
 
 			desc = irq_to_desc(irq);
-			spin_lock(&desc->lock);
+			raw_spin_lock(&desc->lock);
 			if (desc->chip->retrigger)
 				desc->chip->retrigger(irq);
-			spin_unlock(&desc->lock);
+			raw_spin_unlock(&desc->lock);
 		}
 	}
 }
diff --git a/arch/x86/kernel/kgdb.c b/arch/x86/kernel/kgdb.c
index 20a5b368946..dd74fe7273b 100644
--- a/arch/x86/kernel/kgdb.c
+++ b/arch/x86/kernel/kgdb.c
@@ -86,9 +86,15 @@ void pt_regs_to_gdb_regs(unsigned long *gdb_regs, struct pt_regs *regs)
 	gdb_regs[GDB_DS]	= regs->ds;
 	gdb_regs[GDB_ES]	= regs->es;
 	gdb_regs[GDB_CS]	= regs->cs;
-	gdb_regs[GDB_SS]	= __KERNEL_DS;
 	gdb_regs[GDB_FS]	= 0xFFFF;
 	gdb_regs[GDB_GS]	= 0xFFFF;
+	if (user_mode_vm(regs)) {
+		gdb_regs[GDB_SS] = regs->ss;
+		gdb_regs[GDB_SP] = regs->sp;
+	} else {
+		gdb_regs[GDB_SS] = __KERNEL_DS;
+		gdb_regs[GDB_SP] = kernel_stack_pointer(regs);
+	}
 #else
 	gdb_regs[GDB_R8]	= regs->r8;
 	gdb_regs[GDB_R9]	= regs->r9;
@@ -101,8 +107,8 @@ void pt_regs_to_gdb_regs(unsigned long *gdb_regs, struct pt_regs *regs)
 	gdb_regs32[GDB_PS]	= regs->flags;
 	gdb_regs32[GDB_CS]	= regs->cs;
 	gdb_regs32[GDB_SS]	= regs->ss;
-#endif
 	gdb_regs[GDB_SP]	= kernel_stack_pointer(regs);
+#endif
 }
 
 /**
@@ -220,8 +226,7 @@ static void kgdb_correct_hw_break(void)
 			dr7 |= ((breakinfo[breakno].len << 2) |
 				 breakinfo[breakno].type) <<
 			       ((breakno << 2) + 16);
-			if (breakno >= 0 && breakno <= 3)
-				set_debugreg(breakinfo[breakno].addr, breakno);
+			set_debugreg(breakinfo[breakno].addr, breakno);
 
 		} else {
 			if ((dr7 & breakbit) && !breakinfo[breakno].enabled) {
@@ -395,7 +400,6 @@ int kgdb_arch_handle_exception(int e_vector, int signo, int err_code,
 		/* set the trace bit if we're stepping */
 		if (remcomInBuffer[0] == 's') {
 			linux_regs->flags |= X86_EFLAGS_TF;
-			kgdb_single_step = 1;
 			atomic_set(&kgdb_cpu_doing_single_step,
 				   raw_smp_processor_id());
 		}
diff --git a/arch/x86/kernel/mfgpt_32.c b/arch/x86/kernel/mfgpt_32.c
deleted file mode 100644
index 2a62d843f01..00000000000
--- a/arch/x86/kernel/mfgpt_32.c
+++ /dev/null
@@ -1,410 +0,0 @@
-/*
- * Driver/API for AMD Geode Multi-Function General Purpose Timers (MFGPT)
- *
- * Copyright (C) 2006, Advanced Micro Devices, Inc.
- * Copyright (C) 2007, Andres Salomon <dilinger@debian.org>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public License
- * as published by the Free Software Foundation.
- *
- * The MFGPTs are documented in AMD Geode CS5536 Companion Device Data Book.
- */
-
-/*
- * We are using the 32.768kHz input clock - it's the only one that has the
- * ranges we find desirable.  The following table lists the suitable
- * divisors and the associated Hz, minimum interval and the maximum interval:
- *
- *  Divisor   Hz      Min Delta (s)  Max Delta (s)
- *   1        32768   .00048828125      2.000
- *   2        16384   .0009765625       4.000
- *   4         8192   .001953125        8.000
- *   8         4096   .00390625        16.000
- *   16        2048   .0078125         32.000
- *   32        1024   .015625          64.000
- *   64         512   .03125          128.000
- *  128         256   .0625           256.000
- *  256         128   .125            512.000
- */
-
-#include <linux/kernel.h>
-#include <linux/interrupt.h>
-#include <linux/module.h>
-#include <asm/geode.h>
-
-#define MFGPT_DEFAULT_IRQ	7
-
-static struct mfgpt_timer_t {
-	unsigned int avail:1;
-} mfgpt_timers[MFGPT_MAX_TIMERS];
-
-/* Selected from the table above */
-
-#define MFGPT_DIVISOR 16
-#define MFGPT_SCALE  4     /* divisor = 2^(scale) */
-#define MFGPT_HZ  (32768 / MFGPT_DIVISOR)
-#define MFGPT_PERIODIC (MFGPT_HZ / HZ)
-
-/* Allow for disabling of MFGPTs */
-static int disable;
-static int __init mfgpt_disable(char *s)
-{
-	disable = 1;
-	return 1;
-}
-__setup("nomfgpt", mfgpt_disable);
-
-/* Reset the MFGPT timers. This is required by some broken BIOSes which already
- * do the same and leave the system in an unstable state. TinyBIOS 0.98 is
- * affected at least (0.99 is OK with MFGPT workaround left to off).
- */
-static int __init mfgpt_fix(char *s)
-{
-	u32 val, dummy;
-
-	/* The following udocumented bit resets the MFGPT timers */
-	val = 0xFF; dummy = 0;
-	wrmsr(MSR_MFGPT_SETUP, val, dummy);
-	return 1;
-}
-__setup("mfgptfix", mfgpt_fix);
-
-/*
- * Check whether any MFGPTs are available for the kernel to use.  In most
- * cases, firmware that uses AMD's VSA code will claim all timers during
- * bootup; we certainly don't want to take them if they're already in use.
- * In other cases (such as with VSAless OpenFirmware), the system firmware
- * leaves timers available for us to use.
- */
-
-
-static int timers = -1;
-
-static void geode_mfgpt_detect(void)
-{
-	int i;
-	u16 val;
-
-	timers = 0;
-
-	if (disable) {
-		printk(KERN_INFO "geode-mfgpt:  MFGPT support is disabled\n");
-		goto done;
-	}
-
-	if (!geode_get_dev_base(GEODE_DEV_MFGPT)) {
-		printk(KERN_INFO "geode-mfgpt:  MFGPT LBAR is not set up\n");
-		goto done;
-	}
-
-	for (i = 0; i < MFGPT_MAX_TIMERS; i++) {
-		val = geode_mfgpt_read(i, MFGPT_REG_SETUP);
-		if (!(val & MFGPT_SETUP_SETUP)) {
-			mfgpt_timers[i].avail = 1;
-			timers++;
-		}
-	}
-
-done:
-	printk(KERN_INFO "geode-mfgpt:  %d MFGPT timers available.\n", timers);
-}
-
-int geode_mfgpt_toggle_event(int timer, int cmp, int event, int enable)
-{
-	u32 msr, mask, value, dummy;
-	int shift = (cmp == MFGPT_CMP1) ? 0 : 8;
-
-	if (timer < 0 || timer >= MFGPT_MAX_TIMERS)
-		return -EIO;
-
-	/*
-	 * The register maps for these are described in sections 6.17.1.x of
-	 * the AMD Geode CS5536 Companion Device Data Book.
-	 */
-	switch (event) {
-	case MFGPT_EVENT_RESET:
-		/*
-		 * XXX: According to the docs, we cannot reset timers above
-		 * 6; that is, resets for 7 and 8 will be ignored.  Is this
-		 * a problem?   -dilinger
-		 */
-		msr = MSR_MFGPT_NR;
-		mask = 1 << (timer + 24);
-		break;
-
-	case MFGPT_EVENT_NMI:
-		msr = MSR_MFGPT_NR;
-		mask = 1 << (timer + shift);
-		break;
-
-	case MFGPT_EVENT_IRQ:
-		msr = MSR_MFGPT_IRQ;
-		mask = 1 << (timer + shift);
-		break;
-
-	default:
-		return -EIO;
-	}
-
-	rdmsr(msr, value, dummy);
-
-	if (enable)
-		value |= mask;
-	else
-		value &= ~mask;
-
-	wrmsr(msr, value, dummy);
-	return 0;
-}
-EXPORT_SYMBOL_GPL(geode_mfgpt_toggle_event);
-
-int geode_mfgpt_set_irq(int timer, int cmp, int *irq, int enable)
-{
-	u32 zsel, lpc, dummy;
-	int shift;
-
-	if (timer < 0 || timer >= MFGPT_MAX_TIMERS)
-		return -EIO;
-
-	/*
-	 * Unfortunately, MFGPTs come in pairs sharing their IRQ lines. If VSA
-	 * is using the same CMP of the timer's Siamese twin, the IRQ is set to
-	 * 2, and we mustn't use nor change it.
-	 * XXX: Likewise, 2 Linux drivers might clash if the 2nd overwrites the
-	 * IRQ of the 1st. This can only happen if forcing an IRQ, calling this
-	 * with *irq==0 is safe. Currently there _are_ no 2 drivers.
-	 */
-	rdmsr(MSR_PIC_ZSEL_LOW, zsel, dummy);
-	shift = ((cmp == MFGPT_CMP1 ? 0 : 4) + timer % 4) * 4;
-	if (((zsel >> shift) & 0xF) == 2)
-		return -EIO;
-
-	/* Choose IRQ: if none supplied, keep IRQ already set or use default */
-	if (!*irq)
-		*irq = (zsel >> shift) & 0xF;
-	if (!*irq)
-		*irq = MFGPT_DEFAULT_IRQ;
-
-	/* Can't use IRQ if it's 0 (=disabled), 2, or routed to LPC */
-	if (*irq < 1 || *irq == 2 || *irq > 15)
-		return -EIO;
-	rdmsr(MSR_PIC_IRQM_LPC, lpc, dummy);
-	if (lpc & (1 << *irq))
-		return -EIO;
-
-	/* All chosen and checked - go for it */
-	if (geode_mfgpt_toggle_event(timer, cmp, MFGPT_EVENT_IRQ, enable))
-		return -EIO;
-	if (enable) {
-		zsel = (zsel & ~(0xF << shift)) | (*irq << shift);
-		wrmsr(MSR_PIC_ZSEL_LOW, zsel, dummy);
-	}
-
-	return 0;
-}
-
-static int mfgpt_get(int timer)
-{
-	mfgpt_timers[timer].avail = 0;
-	printk(KERN_INFO "geode-mfgpt:  Registered timer %d\n", timer);
-	return timer;
-}
-
-int geode_mfgpt_alloc_timer(int timer, int domain)
-{
-	int i;
-
-	if (timers == -1) {
-		/* timers haven't been detected yet */
-		geode_mfgpt_detect();
-	}
-
-	if (!timers)
-		return -1;
-
-	if (timer >= MFGPT_MAX_TIMERS)
-		return -1;
-
-	if (timer < 0) {
-		/* Try to find an available timer */
-		for (i = 0; i < MFGPT_MAX_TIMERS; i++) {
-			if (mfgpt_timers[i].avail)
-				return mfgpt_get(i);
-
-			if (i == 5 && domain == MFGPT_DOMAIN_WORKING)
-				break;
-		}
-	} else {
-		/* If they requested a specific timer, try to honor that */
-		if (mfgpt_timers[timer].avail)
-			return mfgpt_get(timer);
-	}
-
-	/* No timers available - too bad */
-	return -1;
-}
-EXPORT_SYMBOL_GPL(geode_mfgpt_alloc_timer);
-
-
-#ifdef CONFIG_GEODE_MFGPT_TIMER
-
-/*
- * The MFPGT timers on the CS5536 provide us with suitable timers to use
- * as clock event sources - not as good as a HPET or APIC, but certainly
- * better than the PIT.  This isn't a general purpose MFGPT driver, but
- * a simplified one designed specifically to act as a clock event source.
- * For full details about the MFGPT, please consult the CS5536 data sheet.
- */
-
-#include <linux/clocksource.h>
-#include <linux/clockchips.h>
-
-static unsigned int mfgpt_tick_mode = CLOCK_EVT_MODE_SHUTDOWN;
-static u16 mfgpt_event_clock;
-
-static int irq;
-static int __init mfgpt_setup(char *str)
-{
-	get_option(&str, &irq);
-	return 1;
-}
-__setup("mfgpt_irq=", mfgpt_setup);
-
-static void mfgpt_disable_timer(u16 clock)
-{
-	/* avoid races by clearing CMP1 and CMP2 unconditionally */
-	geode_mfgpt_write(clock, MFGPT_REG_SETUP, (u16) ~MFGPT_SETUP_CNTEN |
-			MFGPT_SETUP_CMP1 | MFGPT_SETUP_CMP2);
-}
-
-static int mfgpt_next_event(unsigned long, struct clock_event_device *);
-static void mfgpt_set_mode(enum clock_event_mode, struct clock_event_device *);
-
-static struct clock_event_device mfgpt_clockevent = {
-	.name = "mfgpt-timer",
-	.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
-	.set_mode = mfgpt_set_mode,
-	.set_next_event = mfgpt_next_event,
-	.rating = 250,
-	.cpumask = cpu_all_mask,
-	.shift = 32
-};
-
-static void mfgpt_start_timer(u16 delta)
-{
-	geode_mfgpt_write(mfgpt_event_clock, MFGPT_REG_CMP2, (u16) delta);
-	geode_mfgpt_write(mfgpt_event_clock, MFGPT_REG_COUNTER, 0);
-
-	geode_mfgpt_write(mfgpt_event_clock, MFGPT_REG_SETUP,
-			  MFGPT_SETUP_CNTEN | MFGPT_SETUP_CMP2);
-}
-
-static void mfgpt_set_mode(enum clock_event_mode mode,
-			   struct clock_event_device *evt)
-{
-	mfgpt_disable_timer(mfgpt_event_clock);
-
-	if (mode == CLOCK_EVT_MODE_PERIODIC)
-		mfgpt_start_timer(MFGPT_PERIODIC);
-
-	mfgpt_tick_mode = mode;
-}
-
-static int mfgpt_next_event(unsigned long delta, struct clock_event_device *evt)
-{
-	mfgpt_start_timer(delta);
-	return 0;
-}
-
-static irqreturn_t mfgpt_tick(int irq, void *dev_id)
-{
-	u16 val = geode_mfgpt_read(mfgpt_event_clock, MFGPT_REG_SETUP);
-
-	/* See if the interrupt was for us */
-	if (!(val & (MFGPT_SETUP_SETUP  | MFGPT_SETUP_CMP2 | MFGPT_SETUP_CMP1)))
-		return IRQ_NONE;
-
-	/* Turn off the clock (and clear the event) */
-	mfgpt_disable_timer(mfgpt_event_clock);
-
-	if (mfgpt_tick_mode == CLOCK_EVT_MODE_SHUTDOWN)
-		return IRQ_HANDLED;
-
-	/* Clear the counter */
-	geode_mfgpt_write(mfgpt_event_clock, MFGPT_REG_COUNTER, 0);
-
-	/* Restart the clock in periodic mode */
-
-	if (mfgpt_tick_mode == CLOCK_EVT_MODE_PERIODIC) {
-		geode_mfgpt_write(mfgpt_event_clock, MFGPT_REG_SETUP,
-				  MFGPT_SETUP_CNTEN | MFGPT_SETUP_CMP2);
-	}
-
-	mfgpt_clockevent.event_handler(&mfgpt_clockevent);
-	return IRQ_HANDLED;
-}
-
-static struct irqaction mfgptirq  = {
-	.handler = mfgpt_tick,
-	.flags = IRQF_DISABLED | IRQF_NOBALANCING | IRQF_TIMER,
-	.name = "mfgpt-timer"
-};
-
-int __init mfgpt_timer_setup(void)
-{
-	int timer, ret;
-	u16 val;
-
-	timer = geode_mfgpt_alloc_timer(MFGPT_TIMER_ANY, MFGPT_DOMAIN_WORKING);
-	if (timer < 0) {
-		printk(KERN_ERR
-		       "mfgpt-timer:  Could not allocate a MFPGT timer\n");
-		return -ENODEV;
-	}
-
-	mfgpt_event_clock = timer;
-
-	/* Set up the IRQ on the MFGPT side */
-	if (geode_mfgpt_setup_irq(mfgpt_event_clock, MFGPT_CMP2, &irq)) {
-		printk(KERN_ERR "mfgpt-timer:  Could not set up IRQ %d\n", irq);
-		return -EIO;
-	}
-
-	/* And register it with the kernel */
-	ret = setup_irq(irq, &mfgptirq);
-
-	if (ret) {
-		printk(KERN_ERR
-		       "mfgpt-timer:  Unable to set up the interrupt.\n");
-		goto err;
-	}
-
-	/* Set the clock scale and enable the event mode for CMP2 */
-	val = MFGPT_SCALE | (3 << 8);
-
-	geode_mfgpt_write(mfgpt_event_clock, MFGPT_REG_SETUP, val);
-
-	/* Set up the clock event */
-	mfgpt_clockevent.mult = div_sc(MFGPT_HZ, NSEC_PER_SEC,
-				       mfgpt_clockevent.shift);
-	mfgpt_clockevent.min_delta_ns = clockevent_delta2ns(0xF,
-			&mfgpt_clockevent);
-	mfgpt_clockevent.max_delta_ns = clockevent_delta2ns(0xFFFE,
-			&mfgpt_clockevent);
-
-	printk(KERN_INFO
-	       "mfgpt-timer:  Registering MFGPT timer %d as a clock event, using IRQ %d\n",
-	       timer, irq);
-	clockevents_register_device(&mfgpt_clockevent);
-
-	return 0;
-
-err:
-	geode_mfgpt_release_irq(mfgpt_event_clock, MFGPT_CMP2, &irq);
-	printk(KERN_ERR
-	       "mfgpt-timer:  Unable to set up the MFGPT clock source\n");
-	return -EIO;
-}
-
-#endif
diff --git a/arch/x86/kernel/olpc.c b/arch/x86/kernel/olpc.c
index 4006c522adc..9d1d263f786 100644
--- a/arch/x86/kernel/olpc.c
+++ b/arch/x86/kernel/olpc.c
@@ -212,7 +212,7 @@ static int __init olpc_init(void)
 	unsigned char *romsig;
 
 	/* The ioremap check is dangerous; limit what we run it on */
-	if (!is_geode() || geode_has_vsa2())
+	if (!is_geode() || cs5535_has_vsa2())
 		return 0;
 
 	spin_lock_init(&ec_lock);
@@ -244,7 +244,7 @@ static int __init olpc_init(void)
 			(unsigned char *) &olpc_platform_info.ecver, 1);
 
 	/* check to see if the VSA exists */
-	if (geode_has_vsa2())
+	if (cs5535_has_vsa2())
 		olpc_platform_info.flags |= OLPC_F_VSA;
 
 	printk(KERN_INFO "OLPC board revision %s%X (EC=%x)\n",
diff --git a/arch/x86/kernel/paravirt-spinlocks.c b/arch/x86/kernel/paravirt-spinlocks.c
index 3a7c5a44082..676b8c77a97 100644
--- a/arch/x86/kernel/paravirt-spinlocks.c
+++ b/arch/x86/kernel/paravirt-spinlocks.c
@@ -8,9 +8,9 @@
 #include <asm/paravirt.h>
 
 static inline void
-default_spin_lock_flags(raw_spinlock_t *lock, unsigned long flags)
+default_spin_lock_flags(arch_spinlock_t *lock, unsigned long flags)
 {
-	__raw_spin_lock(lock);
+	arch_spin_lock(lock);
 }
 
 struct pv_lock_ops pv_lock_ops = {
diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
index c563e4c8ff3..2bbde607814 100644
--- a/arch/x86/kernel/pci-calgary_64.c
+++ b/arch/x86/kernel/pci-calgary_64.c
@@ -31,7 +31,7 @@
 #include <linux/string.h>
 #include <linux/crash_dump.h>
 #include <linux/dma-mapping.h>
-#include <linux/bitops.h>
+#include <linux/bitmap.h>
 #include <linux/pci_ids.h>
 #include <linux/pci.h>
 #include <linux/delay.h>
@@ -212,7 +212,7 @@ static void iommu_range_reserve(struct iommu_table *tbl,
 
 	spin_lock_irqsave(&tbl->it_lock, flags);
 
-	iommu_area_reserve(tbl->it_map, index, npages);
+	bitmap_set(tbl->it_map, index, npages);
 
 	spin_unlock_irqrestore(&tbl->it_lock, flags);
 }
@@ -303,7 +303,7 @@ static void iommu_free(struct iommu_table *tbl, dma_addr_t dma_addr,
 
 	spin_lock_irqsave(&tbl->it_lock, flags);
 
-	iommu_area_free(tbl->it_map, entry, npages);
+	bitmap_clear(tbl->it_map, entry, npages);
 
 	spin_unlock_irqrestore(&tbl->it_lock, flags);
 }
diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c
index 56c0e730d3f..34de53b46f8 100644
--- a/arch/x86/kernel/pci-gart_64.c
+++ b/arch/x86/kernel/pci-gart_64.c
@@ -23,7 +23,7 @@
 #include <linux/module.h>
 #include <linux/topology.h>
 #include <linux/interrupt.h>
-#include <linux/bitops.h>
+#include <linux/bitmap.h>
 #include <linux/kdebug.h>
 #include <linux/scatterlist.h>
 #include <linux/iommu-helper.h>
@@ -126,7 +126,7 @@ static void free_iommu(unsigned long offset, int size)
 	unsigned long flags;
 
 	spin_lock_irqsave(&iommu_bitmap_lock, flags);
-	iommu_area_free(iommu_gart_bitmap, offset, size);
+	bitmap_clear(iommu_gart_bitmap, offset, size);
 	if (offset >= next_bit)
 		next_bit = offset + size;
 	spin_unlock_irqrestore(&iommu_bitmap_lock, flags);
@@ -792,7 +792,7 @@ int __init gart_iommu_init(void)
 	 * Out of IOMMU space handling.
 	 * Reserve some invalid pages at the beginning of the GART.
 	 */
-	iommu_area_reserve(iommu_gart_bitmap, 0, EMERGENCY_PAGES);
+	bitmap_set(iommu_gart_bitmap, 0, EMERGENCY_PAGES);
 
 	pr_info("PCI-DMA: Reserving %luMB of IOMMU area in the AGP aperture\n",
 	       iommu_size >> 20);
diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index 04d182a7cfd..017d937639f 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -509,14 +509,14 @@ static int genregs_get(struct task_struct *target,
 {
 	if (kbuf) {
 		unsigned long *k = kbuf;
-		while (count > 0) {
+		while (count >= sizeof(*k)) {
 			*k++ = getreg(target, pos);
 			count -= sizeof(*k);
 			pos += sizeof(*k);
 		}
 	} else {
 		unsigned long __user *u = ubuf;
-		while (count > 0) {
+		while (count >= sizeof(*u)) {
 			if (__put_user(getreg(target, pos), u++))
 				return -EFAULT;
 			count -= sizeof(*u);
@@ -535,14 +535,14 @@ static int genregs_set(struct task_struct *target,
 	int ret = 0;
 	if (kbuf) {
 		const unsigned long *k = kbuf;
-		while (count > 0 && !ret) {
+		while (count >= sizeof(*k) && !ret) {
 			ret = putreg(target, pos, *k++);
 			count -= sizeof(*k);
 			pos += sizeof(*k);
 		}
 	} else {
 		const unsigned long  __user *u = ubuf;
-		while (count > 0 && !ret) {
+		while (count >= sizeof(*u) && !ret) {
 			unsigned long word;
 			ret = __get_user(word, u++);
 			if (ret)
@@ -555,7 +555,9 @@ static int genregs_set(struct task_struct *target,
 	return ret;
 }
 
-static void ptrace_triggered(struct perf_event *bp, void *data)
+static void ptrace_triggered(struct perf_event *bp, int nmi,
+			     struct perf_sample_data *data,
+			     struct pt_regs *regs)
 {
 	int i;
 	struct thread_struct *thread = &(current->thread);
@@ -593,13 +595,13 @@ static unsigned long ptrace_get_dr7(struct perf_event *bp[])
 	return dr7;
 }
 
-static struct perf_event *
+static int
 ptrace_modify_breakpoint(struct perf_event *bp, int len, int type,
 			 struct task_struct *tsk, int disabled)
 {
 	int err;
 	int gen_len, gen_type;
-	DEFINE_BREAKPOINT_ATTR(attr);
+	struct perf_event_attr attr;
 
 	/*
 	 * We shoud have at least an inactive breakpoint at this
@@ -607,18 +609,18 @@ ptrace_modify_breakpoint(struct perf_event *bp, int len, int type,
 	 * written the address register first
 	 */
 	if (!bp)
-		return ERR_PTR(-EINVAL);
+		return -EINVAL;
 
 	err = arch_bp_generic_fields(len, type, &gen_len, &gen_type);
 	if (err)
-		return ERR_PTR(err);
+		return err;
 
 	attr = bp->attr;
 	attr.bp_len = gen_len;
 	attr.bp_type = gen_type;
 	attr.disabled = disabled;
 
-	return modify_user_hw_breakpoint(bp, &attr, bp->callback, tsk);
+	return modify_user_hw_breakpoint(bp, &attr);
 }
 
 /*
@@ -656,28 +658,17 @@ restore:
 				if (!second_pass)
 					continue;
 
-				thread->ptrace_bps[i] = NULL;
-				bp = ptrace_modify_breakpoint(bp, len, type,
+				rc = ptrace_modify_breakpoint(bp, len, type,
 							      tsk, 1);
-				if (IS_ERR(bp)) {
-					rc = PTR_ERR(bp);
-					thread->ptrace_bps[i] = NULL;
+				if (rc)
 					break;
-				}
-				thread->ptrace_bps[i] = bp;
 			}
 			continue;
 		}
 
-		bp = ptrace_modify_breakpoint(bp, len, type, tsk, 0);
-
-		/* Incorrect bp, or we have a bug in bp API */
-		if (IS_ERR(bp)) {
-			rc = PTR_ERR(bp);
-			thread->ptrace_bps[i] = NULL;
+		rc = ptrace_modify_breakpoint(bp, len, type, tsk, 0);
+		if (rc)
 			break;
-		}
-		thread->ptrace_bps[i] = bp;
 	}
 	/*
 	 * Make a second pass to free the remaining unused breakpoints
@@ -721,9 +712,10 @@ static int ptrace_set_breakpoint_addr(struct task_struct *tsk, int nr,
 {
 	struct perf_event *bp;
 	struct thread_struct *t = &tsk->thread;
-	DEFINE_BREAKPOINT_ATTR(attr);
+	struct perf_event_attr attr;
 
 	if (!t->ptrace_bps[nr]) {
+		hw_breakpoint_init(&attr);
 		/*
 		 * Put stub len and type to register (reserve) an inactive but
 		 * correct bp
@@ -734,26 +726,32 @@ static int ptrace_set_breakpoint_addr(struct task_struct *tsk, int nr,
 		attr.disabled = 1;
 
 		bp = register_user_hw_breakpoint(&attr, ptrace_triggered, tsk);
+
+		/*
+		 * CHECKME: the previous code returned -EIO if the addr wasn't
+		 * a valid task virtual addr. The new one will return -EINVAL in
+		 *  this case.
+		 * -EINVAL may be what we want for in-kernel breakpoints users,
+		 * but -EIO looks better for ptrace, since we refuse a register
+		 * writing for the user. And anyway this is the previous
+		 * behaviour.
+		 */
+		if (IS_ERR(bp))
+			return PTR_ERR(bp);
+
+		t->ptrace_bps[nr] = bp;
 	} else {
+		int err;
+
 		bp = t->ptrace_bps[nr];
-		t->ptrace_bps[nr] = NULL;
 
 		attr = bp->attr;
 		attr.bp_addr = addr;
-		bp = modify_user_hw_breakpoint(bp, &attr, bp->callback, tsk);
+		err = modify_user_hw_breakpoint(bp, &attr);
+		if (err)
+			return err;
 	}
-	/*
-	 * CHECKME: the previous code returned -EIO if the addr wasn't a
-	 * valid task virtual addr. The new one will return -EINVAL in this
-	 * case.
-	 * -EINVAL may be what we want for in-kernel breakpoints users, but
-	 * -EIO looks better for ptrace, since we refuse a register writing
-	 * for the user. And anyway this is the previous behaviour.
-	 */
-	if (IS_ERR(bp))
-		return PTR_ERR(bp);
 
-	t->ptrace_bps[nr] = bp;
 
 	return 0;
 }
@@ -1460,14 +1458,14 @@ static int genregs32_get(struct task_struct *target,
 {
 	if (kbuf) {
 		compat_ulong_t *k = kbuf;
-		while (count > 0) {
+		while (count >= sizeof(*k)) {
 			getreg32(target, pos, k++);
 			count -= sizeof(*k);
 			pos += sizeof(*k);
 		}
 	} else {
 		compat_ulong_t __user *u = ubuf;
-		while (count > 0) {
+		while (count >= sizeof(*u)) {
 			compat_ulong_t word;
 			getreg32(target, pos, &word);
 			if (__put_user(word, u++))
@@ -1488,14 +1486,14 @@ static int genregs32_set(struct task_struct *target,
 	int ret = 0;
 	if (kbuf) {
 		const compat_ulong_t *k = kbuf;
-		while (count > 0 && !ret) {
+		while (count >= sizeof(*k) && !ret) {
 			ret = putreg32(target, pos, *k++);
 			count -= sizeof(*k);
 			pos += sizeof(*k);
 		}
 	} else {
 		const compat_ulong_t __user *u = ubuf;
-		while (count > 0 && !ret) {
+		while (count >= sizeof(*u) && !ret) {
 			compat_ulong_t word;
 			ret = __get_user(word, u++);
 			if (ret)
@@ -1678,21 +1676,33 @@ const struct user_regset_view *task_user_regset_view(struct task_struct *task)
 #endif
 }
 
-void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs,
-					 int error_code, int si_code)
+static void fill_sigtrap_info(struct task_struct *tsk,
+				struct pt_regs *regs,
+				int error_code, int si_code,
+				struct siginfo *info)
 {
-	struct siginfo info;
-
 	tsk->thread.trap_no = 1;
 	tsk->thread.error_code = error_code;
 
-	memset(&info, 0, sizeof(info));
-	info.si_signo = SIGTRAP;
-	info.si_code = si_code;
+	memset(info, 0, sizeof(*info));
+	info->si_signo = SIGTRAP;
+	info->si_code = si_code;
+	info->si_addr = user_mode_vm(regs) ? (void __user *)regs->ip : NULL;
+}
+
+void user_single_step_siginfo(struct task_struct *tsk,
+				struct pt_regs *regs,
+				struct siginfo *info)
+{
+	fill_sigtrap_info(tsk, regs, 0, TRAP_BRKPT, info);
+}
 
-	/* User-mode ip? */
-	info.si_addr = user_mode_vm(regs) ? (void __user *) regs->ip : NULL;
+void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs,
+					 int error_code, int si_code)
+{
+	struct siginfo info;
 
+	fill_sigtrap_info(tsk, regs, error_code, si_code, &info);
 	/* Send us the fake SIGTRAP */
 	force_sig_info(SIGTRAP, &info, tsk);
 }
@@ -1757,29 +1767,22 @@ asmregparm long syscall_trace_enter(struct pt_regs *regs)
 
 asmregparm void syscall_trace_leave(struct pt_regs *regs)
 {
+	bool step;
+
 	if (unlikely(current->audit_context))
 		audit_syscall_exit(AUDITSC_RESULT(regs->ax), regs->ax);
 
 	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
 		trace_sys_exit(regs, regs->ax);
 
-	if (test_thread_flag(TIF_SYSCALL_TRACE))
-		tracehook_report_syscall_exit(regs, 0);
-
 	/*
 	 * If TIF_SYSCALL_EMU is set, we only get here because of
 	 * TIF_SINGLESTEP (i.e. this is PTRACE_SYSEMU_SINGLESTEP).
 	 * We already reported this syscall instruction in
-	 * syscall_trace_enter(), so don't do any more now.
-	 */
-	if (unlikely(test_thread_flag(TIF_SYSCALL_EMU)))
-		return;
-
-	/*
-	 * If we are single-stepping, synthesize a trap to follow the
-	 * system call instruction.
+	 * syscall_trace_enter().
 	 */
-	if (test_thread_flag(TIF_SINGLESTEP) &&
-	    tracehook_consider_fatal_signal(current, SIGTRAP))
-		send_sigtrap(current, regs, 0, TRAP_BRKPT);
+	step = unlikely(test_thread_flag(TIF_SINGLESTEP)) &&
+			!test_thread_flag(TIF_SYSCALL_EMU);
+	if (step || test_thread_flag(TIF_SYSCALL_TRACE))
+		tracehook_report_syscall_exit(regs, step);
 }
diff --git a/arch/x86/kernel/reboot_fixups_32.c b/arch/x86/kernel/reboot_fixups_32.c
index 201eab63b05..fda313ebbb0 100644
--- a/arch/x86/kernel/reboot_fixups_32.c
+++ b/arch/x86/kernel/reboot_fixups_32.c
@@ -12,7 +12,7 @@
 #include <linux/interrupt.h>
 #include <asm/reboot_fixups.h>
 #include <asm/msr.h>
-#include <asm/geode.h>
+#include <linux/cs5535.h>
 
 static void cs5530a_warm_reset(struct pci_dev *dev)
 {
diff --git a/arch/x86/kernel/sys_i386_32.c b/arch/x86/kernel/sys_i386_32.c
index 1884a8d12bf..dee1ff7cba5 100644
--- a/arch/x86/kernel/sys_i386_32.c
+++ b/arch/x86/kernel/sys_i386_32.c
@@ -24,31 +24,6 @@
 
 #include <asm/syscalls.h>
 
-asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
-			  unsigned long prot, unsigned long flags,
-			  unsigned long fd, unsigned long pgoff)
-{
-	int error = -EBADF;
-	struct file *file = NULL;
-	struct mm_struct *mm = current->mm;
-
-	flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
-	if (!(flags & MAP_ANONYMOUS)) {
-		file = fget(fd);
-		if (!file)
-			goto out;
-	}
-
-	down_write(&mm->mmap_sem);
-	error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
-	up_write(&mm->mmap_sem);
-
-	if (file)
-		fput(file);
-out:
-	return error;
-}
-
 /*
  * Perform the select(nd, in, out, ex, tv) and mmap() system
  * calls. Linux/i386 didn't use to be able to handle more than
@@ -77,7 +52,7 @@ asmlinkage int old_mmap(struct mmap_arg_struct __user *arg)
 	if (a.offset & ~PAGE_MASK)
 		goto out;
 
-	err = sys_mmap2(a.addr, a.len, a.prot, a.flags,
+	err = sys_mmap_pgoff(a.addr, a.len, a.prot, a.flags,
 			a.fd, a.offset >> PAGE_SHIFT);
 out:
 	return err;
diff --git a/arch/x86/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c
index 45e00eb09c3..8aa2057efd1 100644
--- a/arch/x86/kernel/sys_x86_64.c
+++ b/arch/x86/kernel/sys_x86_64.c
@@ -23,26 +23,11 @@ SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
 		unsigned long, fd, unsigned long, off)
 {
 	long error;
-	struct file *file;
-
 	error = -EINVAL;
 	if (off & ~PAGE_MASK)
 		goto out;
 
-	error = -EBADF;
-	file = NULL;
-	flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
-	if (!(flags & MAP_ANONYMOUS)) {
-		file = fget(fd);
-		if (!file)
-			goto out;
-	}
-	down_write(&current->mm->mmap_sem);
-	error = do_mmap_pgoff(file, addr, len, prot, flags, off >> PAGE_SHIFT);
-	up_write(&current->mm->mmap_sem);
-
-	if (file)
-		fput(file);
+	error = sys_mmap_pgoff(addr, len, prot, flags, fd, off >> PAGE_SHIFT);
 out:
 	return error;
 }
diff --git a/arch/x86/kernel/syscall_table_32.S b/arch/x86/kernel/syscall_table_32.S
index 70c2125d55b..15228b5d3eb 100644
--- a/arch/x86/kernel/syscall_table_32.S
+++ b/arch/x86/kernel/syscall_table_32.S
@@ -191,7 +191,7 @@ ENTRY(sys_call_table)
 	.long sys_ni_syscall	/* reserved for streams2 */
 	.long ptregs_vfork	/* 190 */
 	.long sys_getrlimit
-	.long sys_mmap2
+	.long sys_mmap_pgoff
 	.long sys_truncate64
 	.long sys_ftruncate64
 	.long sys_stat64	/* 195 */
diff --git a/arch/x86/kernel/tsc_sync.c b/arch/x86/kernel/tsc_sync.c
index eed156851f5..0aa5fed8b9e 100644
--- a/arch/x86/kernel/tsc_sync.c
+++ b/arch/x86/kernel/tsc_sync.c
@@ -33,7 +33,7 @@ static __cpuinitdata atomic_t stop_count;
  * we want to have the fastest, inlined, non-debug version
  * of a critical section, to be able to prove TSC time-warps:
  */
-static __cpuinitdata raw_spinlock_t sync_lock = __RAW_SPIN_LOCK_UNLOCKED;
+static __cpuinitdata arch_spinlock_t sync_lock = __ARCH_SPIN_LOCK_UNLOCKED;
 
 static __cpuinitdata cycles_t last_tsc;
 static __cpuinitdata cycles_t max_warp;
@@ -62,13 +62,13 @@ static __cpuinit void check_tsc_warp(void)
 		 * previous TSC that was measured (possibly on
 		 * another CPU) and update the previous TSC timestamp.
 		 */
-		__raw_spin_lock(&sync_lock);
+		arch_spin_lock(&sync_lock);
 		prev = last_tsc;
 		rdtsc_barrier();
 		now = get_cycles();
 		rdtsc_barrier();
 		last_tsc = now;
-		__raw_spin_unlock(&sync_lock);
+		arch_spin_unlock(&sync_lock);
 
 		/*
 		 * Be nice every now and then (and also check whether
@@ -87,10 +87,10 @@ static __cpuinit void check_tsc_warp(void)
 		 * we saw a time-warp of the TSC going backwards:
 		 */
 		if (unlikely(prev > now)) {
-			__raw_spin_lock(&sync_lock);
+			arch_spin_lock(&sync_lock);
 			max_warp = max(max_warp, prev - now);
 			nr_warps++;
-			__raw_spin_unlock(&sync_lock);
+			arch_spin_unlock(&sync_lock);
 		}
 	}
 	WARN(!(now-start),
diff --git a/arch/x86/kernel/x8664_ksyms_64.c b/arch/x86/kernel/x8664_ksyms_64.c
index 9fafaf83b3b..619f7f88b8c 100644
--- a/arch/x86/kernel/x8664_ksyms_64.c
+++ b/arch/x86/kernel/x8664_ksyms_64.c
@@ -54,4 +54,6 @@ EXPORT_SYMBOL(__memcpy);
 
 EXPORT_SYMBOL(empty_zero_page);
 EXPORT_SYMBOL(init_level4_pgt);
-EXPORT_SYMBOL(load_gs_index);
+#ifndef CONFIG_PARAVIRT
+EXPORT_SYMBOL(native_load_gs_index);
+#endif