21 files changed, 111 insertions, 290 deletions

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index b6fa2877b173..3d0f2b6a5a16 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -30,6 +30,7 @@ config X86
         select HAVE_FTRACE
         select HAVE_KVM if ((X86_32 && !X86_VOYAGER && !X86_VISWS && !X86_NUMAQ) || X86_64)
         select HAVE_ARCH_KGDB if !X86_VOYAGER
+        select HAVE_GENERIC_DMA_COHERENT if X86_32
         select HAVE_EFFICIENT_UNALIGNED_ACCESS
 
 config ARCH_DEFCONFIG
diff --git a/arch/x86/kernel/acpi/cstate.c b/arch/x86/kernel/acpi/cstate.c
index 9220cf46aa10..c2502eb9aa83 100644
--- a/arch/x86/kernel/acpi/cstate.c
+++ b/arch/x86/kernel/acpi/cstate.c
@@ -73,7 +73,6 @@ int acpi_processor_ffh_cstate_probe(unsigned int cpu,
         struct cpuinfo_x86 *c = &cpu_data(cpu);
 
         cpumask_t saved_mask;
-        cpumask_of_cpu_ptr(new_mask, cpu);
         int retval;
         unsigned int eax, ebx, ecx, edx;
         unsigned int edx_part;
@@ -92,7 +91,7 @@ int acpi_processor_ffh_cstate_probe(unsigned int cpu,
 
         /* Make sure we are running on right CPU */
         saved_mask = current->cpus_allowed;
-        retval = set_cpus_allowed_ptr(current, new_mask);
+        retval = set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu));
         if (retval)
                 return -1;
 
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index 74697408576f..22d7d050905d 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -29,9 +29,6 @@
 
 #define CMD_SET_TYPE(cmd, t) ((cmd)->data[1] |= ((t) << 28))
 
-#define to_pages(addr, size) \
-         (round_up(((addr) & ~PAGE_MASK) + (size), PAGE_SIZE) >> PAGE_SHIFT)
-
 #define EXIT_LOOP_COUNT 10000000
 
 static DEFINE_RWLOCK(amd_iommu_devtable_lock);
@@ -185,7 +182,7 @@ static int iommu_flush_pages(struct amd_iommu *iommu, u16 domid,
                 u64 address, size_t size)
 {
         int s = 0;
-        unsigned pages = to_pages(address, size);
+        unsigned pages = iommu_num_pages(address, size);
 
         address &= PAGE_MASK;
 
@@ -557,8 +554,8 @@ static struct dma_ops_domain *dma_ops_domain_alloc(struct amd_iommu *iommu,
         if (iommu->exclusion_start &&
             iommu->exclusion_start < dma_dom->aperture_size) {
                 unsigned long startpage = iommu->exclusion_start >> PAGE_SHIFT;
-                int pages = to_pages(iommu->exclusion_start,
-                                iommu->exclusion_length);
+                int pages = iommu_num_pages(iommu->exclusion_start,
+                                            iommu->exclusion_length);
                 dma_ops_reserve_addresses(dma_dom, startpage, pages);
         }
 
@@ -767,7 +764,7 @@ static dma_addr_t __map_single(struct device *dev,
         unsigned int pages;
         int i;
 
-        pages = to_pages(paddr, size);
+        pages = iommu_num_pages(paddr, size);
         paddr &= PAGE_MASK;
 
         address = dma_ops_alloc_addresses(dev, dma_dom, pages);
@@ -802,7 +799,7 @@ static void __unmap_single(struct amd_iommu *iommu,
         if ((dma_addr == 0) || (dma_addr + size > dma_dom->aperture_size))
                 return;
 
-        pages = to_pages(dma_addr, size);
+        pages = iommu_num_pages(dma_addr, size);
         dma_addr &= PAGE_MASK;
         start = dma_addr;
 
diff --git a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
index ff2fff56f0a8..dd097b835839 100644
--- a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
+++ b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
@@ -200,12 +200,10 @@ static void drv_read(struct drv_cmd *cmd)
 static void drv_write(struct drv_cmd *cmd)
 {
         cpumask_t saved_mask = current->cpus_allowed;
-        cpumask_of_cpu_ptr_declare(cpu_mask);
         unsigned int i;
 
         for_each_cpu_mask_nr(i, cmd->mask) {
-                cpumask_of_cpu_ptr_next(cpu_mask, i);
-                set_cpus_allowed_ptr(current, cpu_mask);
+                set_cpus_allowed_ptr(current, &cpumask_of_cpu(i));
                 do_drv_write(cmd);
         }
 
@@ -269,12 +267,11 @@ static unsigned int get_measured_perf(unsigned int cpu)
         } aperf_cur, mperf_cur;
 
         cpumask_t saved_mask;
-        cpumask_of_cpu_ptr(cpu_mask, cpu);
         unsigned int perf_percent;
         unsigned int retval;
 
         saved_mask = current->cpus_allowed;
-        set_cpus_allowed_ptr(current, cpu_mask);
+        set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu));
         if (get_cpu() != cpu) {
                 /* We were not able to run on requested processor */
                 put_cpu();
@@ -340,7 +337,6 @@ static unsigned int get_measured_perf(unsigned int cpu)
 
 static unsigned int get_cur_freq_on_cpu(unsigned int cpu)
 {
-        cpumask_of_cpu_ptr(cpu_mask, cpu);
         struct acpi_cpufreq_data *data = per_cpu(drv_data, cpu);
         unsigned int freq;
         unsigned int cached_freq;
@@ -353,7 +349,7 @@ static unsigned int get_cur_freq_on_cpu(unsigned int cpu)
         }
 
         cached_freq = data->freq_table[data->acpi_data->state].frequency;
-        freq = extract_freq(get_cur_val(cpu_mask), data);
+        freq = extract_freq(get_cur_val(&cpumask_of_cpu(cpu)), data);
         if (freq != cached_freq) {
                 /*
                  * The dreaded BIOS frequency change behind our back.
diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
index 53c7b6936973..c45ca6d4dce1 100644
--- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
+++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
@@ -479,12 +479,11 @@ static int core_voltage_post_transition(struct powernow_k8_data *data, u32 reqvi
 static int check_supported_cpu(unsigned int cpu)
 {
         cpumask_t oldmask;
-        cpumask_of_cpu_ptr(cpu_mask, cpu);
         u32 eax, ebx, ecx, edx;
         unsigned int rc = 0;
 
         oldmask = current->cpus_allowed;
-        set_cpus_allowed_ptr(current, cpu_mask);
+        set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu));
 
         if (smp_processor_id() != cpu) {
                 printk(KERN_ERR PFX "limiting to cpu %u failed\n", cpu);
@@ -1017,7 +1016,6 @@ static int transition_frequency_pstate(struct powernow_k8_data *data, unsigned i
 static int powernowk8_target(struct cpufreq_policy *pol, unsigned targfreq, unsigned relation)
 {
         cpumask_t oldmask;
-        cpumask_of_cpu_ptr(cpu_mask, pol->cpu);
         struct powernow_k8_data *data = per_cpu(powernow_data, pol->cpu);
         u32 checkfid;
         u32 checkvid;
@@ -1032,7 +1030,7 @@ static int powernowk8_target(struct cpufreq_policy *pol, unsigned targfreq, unsi
 
         /* only run on specific CPU from here on */
         oldmask = current->cpus_allowed;
-        set_cpus_allowed_ptr(current, cpu_mask);
+        set_cpus_allowed_ptr(current, &cpumask_of_cpu(pol->cpu));
 
         if (smp_processor_id() != pol->cpu) {
                 printk(KERN_ERR PFX "limiting to cpu %u failed\n", pol->cpu);
@@ -1107,7 +1105,6 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
 {
         struct powernow_k8_data *data;
         cpumask_t oldmask;
-        cpumask_of_cpu_ptr_declare(newmask);
         int rc;
 
         if (!cpu_online(pol->cpu))
@@ -1159,8 +1156,7 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
 
         /* only run on specific CPU from here on */
         oldmask = current->cpus_allowed;
-        cpumask_of_cpu_ptr_next(newmask, pol->cpu);
-        set_cpus_allowed_ptr(current, newmask);
+        set_cpus_allowed_ptr(current, &cpumask_of_cpu(pol->cpu));
 
         if (smp_processor_id() != pol->cpu) {
                 printk(KERN_ERR PFX "limiting to cpu %u failed\n", pol->cpu);
@@ -1182,7 +1178,7 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
         set_cpus_allowed_ptr(current, &oldmask);
 
         if (cpu_family == CPU_HW_PSTATE)
-                pol->cpus = *newmask;
+                pol->cpus = cpumask_of_cpu(pol->cpu);
         else
                 pol->cpus = per_cpu(cpu_core_map, pol->cpu);
         data->available_cores = &(pol->cpus);
@@ -1248,7 +1244,6 @@ static unsigned int powernowk8_get (unsigned int cpu)
 {
         struct powernow_k8_data *data;
         cpumask_t oldmask = current->cpus_allowed;
-        cpumask_of_cpu_ptr(newmask, cpu);
         unsigned int khz = 0;
         unsigned int first;
 
@@ -1258,7 +1253,7 @@ static unsigned int powernowk8_get (unsigned int cpu)
         if (!data)
                 return -EINVAL;
 
-        set_cpus_allowed_ptr(current, newmask);
+        set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu));
         if (smp_processor_id() != cpu) {
                 printk(KERN_ERR PFX
                         "limiting to CPU %d failed in powernowk8_get\n", cpu);
diff --git a/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c b/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c
index ca2ac13b7af2..15e13c01cc36 100644
--- a/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c
+++ b/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c
@@ -324,10 +324,9 @@ static unsigned int get_cur_freq(unsigned int cpu)
         unsigned l, h;
         unsigned clock_freq;
         cpumask_t saved_mask;
-        cpumask_of_cpu_ptr(new_mask, cpu);
 
         saved_mask = current->cpus_allowed;
-        set_cpus_allowed_ptr(current, new_mask);
+        set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu));
         if (smp_processor_id() != cpu)
                 return 0;
 
@@ -585,15 +584,12 @@ static int centrino_target (struct cpufreq_policy *policy,
                  * Best effort undo..
                  */
 
-                if (!cpus_empty(*covered_cpus)) {
-                        cpumask_of_cpu_ptr_declare(new_mask);
-
+                if (!cpus_empty(*covered_cpus))
                         for_each_cpu_mask_nr(j, *covered_cpus) {
-                                cpumask_of_cpu_ptr_next(new_mask, j);
-                                set_cpus_allowed_ptr(current, new_mask);
+                                set_cpus_allowed_ptr(current,
+                                                     &cpumask_of_cpu(j));
                                 wrmsr(MSR_IA32_PERF_CTL, oldmsr, h);
                         }
-                }
 
                 tmp = freqs.new;
                 freqs.new = freqs.old;
diff --git a/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c b/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c
index 2f3728dc24f6..191f7263c61d 100644
--- a/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c
+++ b/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c
@@ -244,8 +244,7 @@ static unsigned int _speedstep_get(const cpumask_t *cpus)
 
 static unsigned int speedstep_get(unsigned int cpu)
 {
-        cpumask_of_cpu_ptr(newmask, cpu);
-        return _speedstep_get(newmask);
+        return _speedstep_get(&cpumask_of_cpu(cpu));
 }
 
 /**
diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c
index 650d40f7912b..6b0a10b002f1 100644
--- a/arch/x86/kernel/cpu/intel_cacheinfo.c
+++ b/arch/x86/kernel/cpu/intel_cacheinfo.c
@@ -516,7 +516,6 @@ static int __cpuinit detect_cache_attributes(unsigned int cpu)
         unsigned long           j;
         int                     retval;
         cpumask_t               oldmask;
-        cpumask_of_cpu_ptr(newmask, cpu);
 
         if (num_cache_leaves == 0)
                 return -ENOENT;
@@ -527,7 +526,7 @@ static int __cpuinit detect_cache_attributes(unsigned int cpu)
                 return -ENOMEM;
 
         oldmask = current->cpus_allowed;
-        retval = set_cpus_allowed_ptr(current, newmask);
+        retval = set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu));
         if (retval)
                 goto out;
 
diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c
index 4895e0634d22..6e388412a854 100644
--- a/arch/x86/kernel/ldt.c
+++ b/arch/x86/kernel/ldt.c
@@ -64,12 +64,10 @@ static int alloc_ldt(mm_context_t *pc, int mincount, int reload)
 
         if (reload) {
 #ifdef CONFIG_SMP
-                cpumask_of_cpu_ptr_declare(mask);
-
                 preempt_disable();
                 load_LDT(pc);
-                cpumask_of_cpu_ptr_next(mask, smp_processor_id());
-                if (!cpus_equal(current->mm->cpu_vm_mask, *mask))
+                if (!cpus_equal(current->mm->cpu_vm_mask,
+                                cpumask_of_cpu(smp_processor_id())))
                         smp_call_function(flush_ldt, current->mm, 1);
                 preempt_enable();
 #else
diff --git a/arch/x86/kernel/microcode.c b/arch/x86/kernel/microcode.c
index 6994c751590e..652fa5c38ebe 100644
--- a/arch/x86/kernel/microcode.c
+++ b/arch/x86/kernel/microcode.c
@@ -388,7 +388,6 @@ static int do_microcode_update (void)
         void *new_mc = NULL;
         int cpu;
         cpumask_t old;
-        cpumask_of_cpu_ptr_declare(newmask);
 
         old = current->cpus_allowed;
 
@@ -405,8 +404,7 @@ static int do_microcode_update (void)
 
                         if (!uci->valid)
                                 continue;
-                        cpumask_of_cpu_ptr_next(newmask, cpu);
-                        set_cpus_allowed_ptr(current, newmask);
+                        set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu));
                         error = get_maching_microcode(new_mc, cpu);
                         if (error < 0)
                                 goto out;
@@ -576,7 +574,6 @@ static int apply_microcode_check_cpu(int cpu)
         struct cpuinfo_x86 *c = &cpu_data(cpu);
         struct ucode_cpu_info *uci = ucode_cpu_info + cpu;
         cpumask_t old;
-        cpumask_of_cpu_ptr(newmask, cpu);
         unsigned int val[2];
         int err = 0;
 
@@ -585,7 +582,7 @@ static int apply_microcode_check_cpu(int cpu)
                 return 0;
 
         old = current->cpus_allowed;
-        set_cpus_allowed_ptr(current, newmask);
+        set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu));
 
         /* Check if the microcode we have in memory matches the CPU */
         if (c->x86_vendor != X86_VENDOR_INTEL || c->x86 < 6 ||
@@ -623,12 +620,11 @@ static int apply_microcode_check_cpu(int cpu)
 static void microcode_init_cpu(int cpu, int resume)
 {
         cpumask_t old;
-        cpumask_of_cpu_ptr(newmask, cpu);
         struct ucode_cpu_info *uci = ucode_cpu_info + cpu;
 
         old = current->cpus_allowed;
 
-        set_cpus_allowed_ptr(current, newmask);
+        set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu));
         mutex_lock(&microcode_mutex);
         collect_cpu_info(cpu);
         if (uci->valid && system_state == SYSTEM_RUNNING && !resume)
@@ -661,13 +657,10 @@ static ssize_t reload_store(struct sys_device *dev,
         if (end == buf)
                 return -EINVAL;
         if (val == 1) {
-                cpumask_t old;
-                cpumask_of_cpu_ptr(newmask, cpu);
-
-                old = current->cpus_allowed;
+                cpumask_t old = current->cpus_allowed;
 
                 get_online_cpus();
-                set_cpus_allowed_ptr(current, newmask);
+                set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu));
 
                 mutex_lock(&microcode_mutex);
                 if (uci->valid)
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 37544123896d..8dbffb846de9 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -192,124 +192,6 @@ static __init int iommu_setup(char *p)
 }
 early_param("iommu", iommu_setup);
 
-#ifdef CONFIG_X86_32
-int dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr,
-                                dma_addr_t device_addr, size_t size, int flags)
-{
-        void __iomem *mem_base = NULL;
-        int pages = size >> PAGE_SHIFT;
-        int bitmap_size = BITS_TO_LONGS(pages) * sizeof(long);
-
-        if ((flags & (DMA_MEMORY_MAP | DMA_MEMORY_IO)) == 0)
-                goto out;
-        if (!size)
-                goto out;
-        if (dev->dma_mem)
-                goto out;
-
-        /* FIXME: this routine just ignores DMA_MEMORY_INCLUDES_CHILDREN */
-
-        mem_base = ioremap(bus_addr, size);
-        if (!mem_base)
-                goto out;
-
-        dev->dma_mem = kzalloc(sizeof(struct dma_coherent_mem), GFP_KERNEL);
-        if (!dev->dma_mem)
-                goto out;
-        dev->dma_mem->bitmap = kzalloc(bitmap_size, GFP_KERNEL);
-        if (!dev->dma_mem->bitmap)
-                goto free1_out;
-
-        dev->dma_mem->virt_base = mem_base;
-        dev->dma_mem->device_base = device_addr;
-        dev->dma_mem->size = pages;
-        dev->dma_mem->flags = flags;
-
-        if (flags & DMA_MEMORY_MAP)
-                return DMA_MEMORY_MAP;
-
-        return DMA_MEMORY_IO;
-
- free1_out:
-        kfree(dev->dma_mem);
- out:
-        if (mem_base)
-                iounmap(mem_base);
-        return 0;
-}
-EXPORT_SYMBOL(dma_declare_coherent_memory);
-
-void dma_release_declared_memory(struct device *dev)
-{
-        struct dma_coherent_mem *mem = dev->dma_mem;
-
-        if (!mem)
-                return;
-        dev->dma_mem = NULL;
-        iounmap(mem->virt_base);
-        kfree(mem->bitmap);
-        kfree(mem);
-}
-EXPORT_SYMBOL(dma_release_declared_memory);
-
-void *dma_mark_declared_memory_occupied(struct device *dev,
-                                        dma_addr_t device_addr, size_t size)
-{
-        struct dma_coherent_mem *mem = dev->dma_mem;
-        int pos, err;
-        int pages = (size + (device_addr & ~PAGE_MASK) + PAGE_SIZE - 1);
-
-        pages >>= PAGE_SHIFT;
-
-        if (!mem)
-                return ERR_PTR(-EINVAL);
-
-        pos = (device_addr - mem->device_base) >> PAGE_SHIFT;
-        err = bitmap_allocate_region(mem->bitmap, pos, get_order(pages));
-        if (err != 0)
-                return ERR_PTR(err);
-        return mem->virt_base + (pos << PAGE_SHIFT);
-}
-EXPORT_SYMBOL(dma_mark_declared_memory_occupied);
-
-static int dma_alloc_from_coherent_mem(struct device *dev, ssize_t size,
-                                       dma_addr_t *dma_handle, void **ret)
-{
-        struct dma_coherent_mem *mem = dev ? dev->dma_mem : NULL;
-        int order = get_order(size);
-
-        if (mem) {
-                int page = bitmap_find_free_region(mem->bitmap, mem->size,
-                                                     order);
-                if (page >= 0) {
-                        *dma_handle = mem->device_base + (page << PAGE_SHIFT);
-                        *ret = mem->virt_base + (page << PAGE_SHIFT);
-                        memset(*ret, 0, size);
-                }
-                if (mem->flags & DMA_MEMORY_EXCLUSIVE)
-                        *ret = NULL;
-        }
-        return (mem != NULL);
-}
-
-static int dma_release_coherent(struct device *dev, int order, void *vaddr)
-{
-        struct dma_coherent_mem *mem = dev ? dev->dma_mem : NULL;
-
-        if (mem && vaddr >= mem->virt_base && vaddr <
-                   (mem->virt_base + (mem->size << PAGE_SHIFT))) {
-                int page = (vaddr - mem->virt_base) >> PAGE_SHIFT;
-
-                bitmap_release_region(mem->bitmap, page, order);
-                return 1;
-        }
-        return 0;
-}
-#else
-#define dma_alloc_from_coherent_mem(dev, size, handle, ret) (0)
-#define dma_release_coherent(dev, order, vaddr) (0)
-#endif /* CONFIG_X86_32 */
-
 int dma_supported(struct device *dev, u64 mask)
 {
         struct dma_mapping_ops *ops = get_dma_ops(dev);
@@ -379,7 +261,7 @@ dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
         /* ignore region specifiers */
         gfp &= ~(__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32);
 
-        if (dma_alloc_from_coherent_mem(dev, size, dma_handle, &memory))
+        if (dma_alloc_from_coherent(dev, size, dma_handle, &memory))
                 return memory;
 
         if (!dev) {
@@ -484,7 +366,7 @@ void dma_free_coherent(struct device *dev, size_t size,
 
         int order = get_order(size);
         WARN_ON(irqs_disabled());       /* for portability */
-        if (dma_release_coherent(dev, order, vaddr))
+        if (dma_release_from_coherent(dev, order, vaddr))
                 return;
         if (ops->unmap_single)
                 ops->unmap_single(dev, bus, size, 0);
diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c
index 744126e64950..49285f8fd4d5 100644
--- a/arch/x86/kernel/pci-gart_64.c
+++ b/arch/x86/kernel/pci-gart_64.c
@@ -67,9 +67,6 @@ static u32 gart_unmapped_entry;
         (((x) & 0xfffff000) | (((x) >> 32) << 4) | GPTE_VALID | GPTE_COHERENT)
 #define GPTE_DECODE(x) (((x) & 0xfffff000) | (((u64)(x) & 0xff0) << 28))
 
-#define to_pages(addr, size) \
-        (round_up(((addr) & ~PAGE_MASK) + (size), PAGE_SIZE) >> PAGE_SHIFT)
-
 #define EMERGENCY_PAGES 32 /* = 128KB */
 
 #ifdef CONFIG_AGP
@@ -241,7 +238,7 @@ nonforced_iommu(struct device *dev, unsigned long addr, size_t size)
 static dma_addr_t dma_map_area(struct device *dev, dma_addr_t phys_mem,
                                 size_t size, int dir)
 {
-        unsigned long npages = to_pages(phys_mem, size);
+        unsigned long npages = iommu_num_pages(phys_mem, size);
         unsigned long iommu_page = alloc_iommu(dev, npages);
         int i;
 
@@ -304,7 +301,7 @@ static void gart_unmap_single(struct device *dev, dma_addr_t dma_addr,
                 return;
 
         iommu_page = (dma_addr - iommu_bus_base)>>PAGE_SHIFT;
-        npages = to_pages(dma_addr, size);
+        npages = iommu_num_pages(dma_addr, size);
         for (i = 0; i < npages; i++) {
                 iommu_gatt_base[iommu_page + i] = gart_unmapped_entry;
                 CLEAR_LEAK(iommu_page + i);
@@ -387,7 +384,7 @@ static int __dma_map_cont(struct device *dev, struct scatterlist *start,
                 }
 
                 addr = phys_addr;
-                pages = to_pages(s->offset, s->length);
+                pages = iommu_num_pages(s->offset, s->length);
                 while (pages--) {
                         iommu_gatt_base[iommu_page] = GPTE_ENCODE(addr);
                         SET_LEAK(iommu_page);
@@ -470,7 +467,7 @@ gart_map_sg(struct device *dev, struct scatterlist *sg, int nents, int dir)
 
                 seg_size += s->length;
                 need = nextneed;
-                pages += to_pages(s->offset, s->length);
+                pages += iommu_num_pages(s->offset, s->length);
                 ps = s;
         }
         if (dma_map_cont(dev, start_sg, i - start, sgmap, pages, need) < 0)
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 06a9f643817e..724adfc63cb9 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -414,25 +414,20 @@ void native_machine_shutdown(void)
 
         /* The boot cpu is always logical cpu 0 */
         int reboot_cpu_id = 0;
-        cpumask_of_cpu_ptr(newmask, reboot_cpu_id);
 
 #ifdef CONFIG_X86_32
         /* See if there has been given a command line override */
         if ((reboot_cpu != -1) && (reboot_cpu < NR_CPUS) &&
-                cpu_online(reboot_cpu)) {
+                cpu_online(reboot_cpu))
                 reboot_cpu_id = reboot_cpu;
-                cpumask_of_cpu_ptr_next(newmask, reboot_cpu_id);
-        }
 #endif
 
         /* Make certain the cpu I'm about to reboot on is online */
-        if (!cpu_online(reboot_cpu_id)) {
+        if (!cpu_online(reboot_cpu_id))
                 reboot_cpu_id = smp_processor_id();
-                cpumask_of_cpu_ptr_next(newmask, reboot_cpu_id);
-        }
 
         /* Make certain I only run on the appropriate processor */
-        set_cpus_allowed_ptr(current, newmask);
+        set_cpus_allowed_ptr(current, &cpumask_of_cpu(reboot_cpu_id));
 
         /* O.K Now that I'm on the appropriate processor,
          * stop all of the others.
diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c
index f7745f94c006..76e305e064f9 100644
--- a/arch/x86/kernel/setup_percpu.c
+++ b/arch/x86/kernel/setup_percpu.c
@@ -80,24 +80,6 @@ static void __init setup_per_cpu_maps(void)
 #endif
 }
 
-#ifdef CONFIG_HAVE_CPUMASK_OF_CPU_MAP
-cpumask_t *cpumask_of_cpu_map __read_mostly;
-EXPORT_SYMBOL(cpumask_of_cpu_map);
-
-/* requires nr_cpu_ids to be initialized */
-static void __init setup_cpumask_of_cpu(void)
-{
-        int i;
-
-        /* alloc_bootmem zeroes memory */
-        cpumask_of_cpu_map = alloc_bootmem_low(sizeof(cpumask_t) * nr_cpu_ids);
-        for (i = 0; i < nr_cpu_ids; i++)
-                cpu_set(i, cpumask_of_cpu_map[i]);
-}
-#else
-static inline void setup_cpumask_of_cpu(void) { }
-#endif
-
 #ifdef CONFIG_X86_32
 /*
  * Great future not-so-futuristic plan: make i386 and x86_64 do it
@@ -197,9 +179,6 @@ void __init setup_per_cpu_areas(void)
 
         /* Setup node to cpumask map */
         setup_node_to_cpumask_map();
-
-        /* Setup cpumask_of_cpu map */
-        setup_cpumask_of_cpu();
 }
 
 #endif
diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig
index 8d45fabc5f3b..ce3251ce5504 100644
--- a/arch/x86/kvm/Kconfig
+++ b/arch/x86/kvm/Kconfig
@@ -21,6 +21,7 @@ config KVM
         tristate "Kernel-based Virtual Machine (KVM) support"
         depends on HAVE_KVM
         select PREEMPT_NOTIFIERS
+        select MMU_NOTIFIER
         select ANON_INODES
         ---help---
           Support hosting fully virtualized guest machines using hardware
diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
index 0313a5eec412..d9249a882aa5 100644
--- a/arch/x86/lguest/boot.c
+++ b/arch/x86/lguest/boot.c
@@ -1014,6 +1014,9 @@ __init void lguest_init(void)
         init_pg_tables_start = __pa(pg0);
         init_pg_tables_end = __pa(pg0);
 
+        /* As described in head_32.S, we map the first 128M of memory. */
+        max_pfn_mapped = (128*1024*1024) >> PAGE_SHIFT;
+
         /* Load the %fs segment register (the per-cpu segment register) with
          * the normal data segment to get through booting. */
         asm volatile ("mov %0, %%fs" : : "r" (__KERNEL_DS) : "memory");
diff --git a/arch/x86/mm/gup.c b/arch/x86/mm/gup.c
index 3085f25b4355..007bb06c7504 100644
--- a/arch/x86/mm/gup.c
+++ b/arch/x86/mm/gup.c
@@ -223,14 +223,17 @@ int get_user_pages_fast(unsigned long start, int nr_pages, int write,
                         struct page **pages)
 {
         struct mm_struct *mm = current->mm;
-        unsigned long end = start + (nr_pages << PAGE_SHIFT);
-        unsigned long addr = start;
+        unsigned long addr, len, end;
         unsigned long next;
         pgd_t *pgdp;
         int nr = 0;
 
+        start &= PAGE_MASK;
+        addr = start;
+        len = (unsigned long) nr_pages << PAGE_SHIFT;
+        end = start + len;
         if (unlikely(!access_ok(write ? VERIFY_WRITE : VERIFY_READ,
-                                        start, nr_pages*PAGE_SIZE)))
+                                        start, len)))
                 goto slow_irqon;
 
         /*
diff --git a/arch/x86/pci/fixup.c b/arch/x86/pci/fixup.c
index ff3a6a336342..4bdaa590375d 100644
--- a/arch/x86/pci/fixup.c
+++ b/arch/x86/pci/fixup.c
@@ -23,7 +23,8 @@ static void __devinit pci_fixup_i450nx(struct pci_dev *d)
                 pci_read_config_byte(d, reg++, &busno);
                 pci_read_config_byte(d, reg++, &suba);
                 pci_read_config_byte(d, reg++, &subb);
-                DBG("i450NX PXB %d: %02x/%02x/%02x\n", pxb, busno, suba, subb);
+                dev_dbg(&d->dev, "i450NX PXB %d: %02x/%02x/%02x\n", pxb, busno,
+                        suba, subb);
                 if (busno)
                         pci_scan_bus_with_sysdata(busno);       /* Bus A */
                 if (suba < subb)
diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c
index a09505806b82..5807d1bc73f7 100644
--- a/arch/x86/pci/i386.c
+++ b/arch/x86/pci/i386.c
@@ -128,10 +128,8 @@ static void __init pcibios_allocate_bus_resources(struct list_head *bus_list)
                                 pr = pci_find_parent_resource(dev, r);
                                 if (!r->start || !pr ||
                                     request_resource(pr, r) < 0) {
-                                        printk(KERN_ERR "PCI: Cannot allocate "
-                                                "resource region %d "
-                                                "of bridge %s\n",
-                                                idx, pci_name(dev));
+                                        dev_err(&dev->dev, "BAR %d: can't "
+                                                "allocate resource\n", idx);
                                         /*
                                          * Something is wrong with the region.
                                          * Invalidate the resource to prevent
@@ -166,15 +164,15 @@ static void __init pcibios_allocate_resources(int pass)
                         else
                                 disabled = !(command & PCI_COMMAND_MEMORY);
                         if (pass == disabled) {
-                                DBG("PCI: Resource %08lx-%08lx "
-                                    "(f=%lx, d=%d, p=%d)\n",
-                                    r->start, r->end, r->flags, disabled, pass);
+                                dev_dbg(&dev->dev, "resource %#08llx-%#08llx "
+                                        "(f=%lx, d=%d, p=%d)\n",
+                                        (unsigned long long) r->start,
+                                        (unsigned long long) r->end,
+                                        r->flags, disabled, pass);
                                 pr = pci_find_parent_resource(dev, r);
                                 if (!pr || request_resource(pr, r) < 0) {
-                                        printk(KERN_ERR "PCI: Cannot allocate "
-                                                "resource region %d "
-                                                "of device %s\n",
-                                                idx, pci_name(dev));
+                                        dev_err(&dev->dev, "BAR %d: can't "
+                                                "allocate resource\n", idx);
                                         /* We'll assign a new address later */
                                         r->end -= r->start;
                                         r->start = 0;
@@ -187,8 +185,7 @@ static void __init pcibios_allocate_resources(int pass)
                                 /* Turn the ROM off, leave the resource region,
                                  * but keep it unregistered. */
                                 u32 reg;
-                                DBG("PCI: Switching off ROM of %s\n",
-                                        pci_name(dev));
+                                dev_dbg(&dev->dev, "disabling ROM\n");
                                 r->flags &= ~IORESOURCE_ROM_ENABLE;
                                 pci_read_config_dword(dev,
                                                 dev->rom_base_reg, &reg);
@@ -257,8 +254,7 @@ void pcibios_set_master(struct pci_dev *dev)
                 lat = pcibios_max_latency;
         else
                 return;
-        printk(KERN_DEBUG "PCI: Setting latency timer of device %s to %d\n",
-                pci_name(dev), lat);
+        dev_printk(KERN_DEBUG, &dev->dev, "setting latency timer to %d\n", lat);
         pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat);
 }
 
diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c
index 6a06a2eb0597..fec0123b33a9 100644
--- a/arch/x86/pci/irq.c
+++ b/arch/x86/pci/irq.c
@@ -436,7 +436,7 @@ static int pirq_vlsi_get(struct pci_dev *router, struct pci_dev *dev, int pirq)
 {
         WARN_ON_ONCE(pirq >= 9);
         if (pirq > 8) {
-                printk(KERN_INFO "VLSI router pirq escape (%d)\n", pirq);
+                dev_info(&dev->dev, "VLSI router PIRQ escape (%d)\n", pirq);
                 return 0;
         }
         return read_config_nybble(router, 0x74, pirq-1);
@@ -446,7 +446,7 @@ static int pirq_vlsi_set(struct pci_dev *router, struct pci_dev *dev, int pirq,
 {
         WARN_ON_ONCE(pirq >= 9);
         if (pirq > 8) {
-                printk(KERN_INFO "VLSI router pirq escape (%d)\n", pirq);
+                dev_info(&dev->dev, "VLSI router PIRQ escape (%d)\n", pirq);
                 return 0;
         }
         write_config_nybble(router, 0x74, pirq-1, irq);
@@ -492,15 +492,17 @@ static int pirq_amd756_get(struct pci_dev *router, struct pci_dev *dev, int pirq
         irq = 0;
         if (pirq <= 4)
                 irq = read_config_nybble(router, 0x56, pirq - 1);
-        printk(KERN_INFO "AMD756: dev %04x:%04x, router pirq : %d get irq : %2d\n",
-                dev->vendor, dev->device, pirq, irq);
+        dev_info(&dev->dev,
+                 "AMD756: dev [%04x/%04x], router PIRQ %d get IRQ %d\n",
+                 dev->vendor, dev->device, pirq, irq);
         return irq;
 }
 
 static int pirq_amd756_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)
 {
-        printk(KERN_INFO "AMD756: dev %04x:%04x, router pirq : %d SET irq : %2d\n",
-                dev->vendor, dev->device, pirq, irq);
+        dev_info(&dev->dev,
+                 "AMD756: dev [%04x/%04x], router PIRQ %d set IRQ %d\n",
+                 dev->vendor, dev->device, pirq, irq);
         if (pirq <= 4)
                 write_config_nybble(router, 0x56, pirq - 1, irq);
         return 1;
@@ -730,7 +732,6 @@ static __init int ali_router_probe(struct irq_router *r, struct pci_dev *router,
         switch (device) {
         case PCI_DEVICE_ID_AL_M1533:
         case PCI_DEVICE_ID_AL_M1563:
-                printk(KERN_DEBUG "PCI: Using ALI IRQ Router\n");
                 r->name = "ALI";
                 r->get = pirq_ali_get;
                 r->set = pirq_ali_set;
@@ -840,11 +841,9 @@ static void __init pirq_find_router(struct irq_router *r)
                         h->probe(r, pirq_router_dev, pirq_router_dev->device))
                         break;
         }
-        printk(KERN_INFO "PCI: Using IRQ router %s [%04x/%04x] at %s\n",
-                pirq_router.name,
-                pirq_router_dev->vendor,
-                pirq_router_dev->device,
-                pci_name(pirq_router_dev));
+        dev_info(&pirq_router_dev->dev, "%s IRQ router [%04x/%04x]\n",
+                 pirq_router.name,
+                 pirq_router_dev->vendor, pirq_router_dev->device);
 
         /* The device remains referenced for the kernel lifetime */
 }
@@ -877,7 +876,7 @@ static int pcibios_lookup_irq(struct pci_dev *dev, int assign)
         /* Find IRQ pin */
         pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin);
         if (!pin) {
-                DBG(KERN_DEBUG " -> no interrupt pin\n");
+                dev_dbg(&dev->dev, "no interrupt pin\n");
                 return 0;
         }
         pin = pin - 1;
@@ -887,20 +886,20 @@ static int pcibios_lookup_irq(struct pci_dev *dev, int assign)
         if (!pirq_table)
                 return 0;
 
-        DBG(KERN_DEBUG "IRQ for %s[%c]", pci_name(dev), 'A' + pin);
         info = pirq_get_info(dev);
         if (!info) {
-                DBG(" -> not found in routing table\n" KERN_DEBUG);
+                dev_dbg(&dev->dev, "PCI INT %c not found in routing table\n",
+                        'A' + pin);
                 return 0;
         }
         pirq = info->irq[pin].link;
         mask = info->irq[pin].bitmap;
         if (!pirq) {
-                DBG(" -> not routed\n" KERN_DEBUG);
+                dev_dbg(&dev->dev, "PCI INT %c not routed\n", 'A' + pin);
                 return 0;
         }
-        DBG(" -> PIRQ %02x, mask %04x, excl %04x", pirq, mask,
-                pirq_table->exclusive_irqs);
+        dev_dbg(&dev->dev, "PCI INT %c -> PIRQ %02x, mask %04x, excl %04x",
+                'A' + pin, pirq, mask, pirq_table->exclusive_irqs);
         mask &= pcibios_irq_mask;
 
         /* Work around broken HP Pavilion Notebooks which assign USB to
@@ -930,10 +929,8 @@ static int pcibios_lookup_irq(struct pci_dev *dev, int assign)
                 if (pci_probe & PCI_USE_PIRQ_MASK)
                         newirq = 0;
                 else
-                        printk("\n" KERN_WARNING
-                                "PCI: IRQ %i for device %s doesn't match PIRQ mask - try pci=usepirqmask\n"
-                                KERN_DEBUG, newirq,
-                                pci_name(dev));
+                        dev_warn(&dev->dev, "IRQ %d doesn't match PIRQ mask "
+                                 "%#x; try pci=usepirqmask\n", newirq, mask);
         }
         if (!newirq && assign) {
                 for (i = 0; i < 16; i++) {
@@ -944,39 +941,35 @@ static int pcibios_lookup_irq(struct pci_dev *dev, int assign)
                                 newirq = i;
                 }
         }
-        DBG(" -> newirq=%d", newirq);
+        dev_dbg(&dev->dev, "PCI INT %c -> newirq %d", 'A' + pin, newirq);
 
         /* Check if it is hardcoded */
         if ((pirq & 0xf0) == 0xf0) {
                 irq = pirq & 0xf;
-                DBG(" -> hardcoded IRQ %d\n", irq);
-                msg = "Hardcoded";
+                msg = "hardcoded";
         } else if (r->get && (irq = r->get(pirq_router_dev, dev, pirq)) && \
         ((!(pci_probe & PCI_USE_PIRQ_MASK)) || ((1 << irq) & mask))) {
-                DBG(" -> got IRQ %d\n", irq);
-                msg = "Found";
+                msg = "found";
                 eisa_set_level_irq(irq);
         } else if (newirq && r->set &&
                 (dev->class >> 8) != PCI_CLASS_DISPLAY_VGA) {
-                DBG(" -> assigning IRQ %d", newirq);
                 if (r->set(pirq_router_dev, dev, pirq, newirq)) {
                         eisa_set_level_irq(newirq);
-                        DBG(" ... OK\n");
-                        msg = "Assigned";
+                        msg = "assigned";
                         irq = newirq;
                 }
         }
 
         if (!irq) {
-                DBG(" ... failed\n");
                 if (newirq && mask == (1 << newirq)) {
-                        msg = "Guessed";
+                        msg = "guessed";
                         irq = newirq;
-                } else
+                } else {
+                        dev_dbg(&dev->dev, "can't route interrupt\n");
                         return 0;
+                }
         }
-        printk(KERN_INFO "PCI: %s IRQ %d for device %s\n", msg, irq,
-                pci_name(dev));
+        dev_info(&dev->dev, "%s PCI INT %c -> IRQ %d\n", msg, 'A' + pin, irq);
 
         /* Update IRQ for all devices with the same pirq value */
         while ((dev2 = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev2)) != NULL) {
@@ -996,17 +989,17 @@ static int pcibios_lookup_irq(struct pci_dev *dev, int assign)
                         (!(pci_probe & PCI_USE_PIRQ_MASK) || \
                         ((1 << dev2->irq) & mask))) {
 #ifndef CONFIG_PCI_MSI
-                                printk(KERN_INFO "IRQ routing conflict for %s, have irq %d, want irq %d\n",
-                                       pci_name(dev2), dev2->irq, irq);
+                                dev_info(&dev2->dev, "IRQ routing conflict: "
+                                         "have IRQ %d, want IRQ %d\n",
+                                         dev2->irq, irq);
 #endif
                                 continue;
                         }
                         dev2->irq = irq;
                         pirq_penalty[irq]++;
                         if (dev != dev2)
-                                printk(KERN_INFO
-                                        "PCI: Sharing IRQ %d with %s\n",
-                                        irq, pci_name(dev2));
+                                dev_info(&dev->dev, "sharing IRQ %d with %s\n",
+                                         irq, pci_name(dev2));
                 }
         }
         return 1;
@@ -1025,8 +1018,7 @@ static void __init pcibios_fixup_irqs(void)
                  * already in use.
                  */
                 if (dev->irq >= 16) {
-                        DBG(KERN_DEBUG "%s: ignoring bogus IRQ %d\n",
-                                pci_name(dev), dev->irq);
+                        dev_dbg(&dev->dev, "ignoring bogus IRQ %d\n", dev->irq);
                         dev->irq = 0;
                 }
                 /*
@@ -1070,12 +1062,12 @@ static void __init pcibios_fixup_irqs(void)
                                         irq = IO_APIC_get_PCI_irq_vector(bridge->bus->number,
                                                         PCI_SLOT(bridge->devfn), pin);
                                         if (irq >= 0)
-                                                printk(KERN_WARNING "PCI: using PPB %s[%c] to get irq %d\n",
-                                                        pci_name(bridge), 'A' + pin, irq);
+                                                dev_warn(&dev->dev, "using bridge %s INT %c to get IRQ %d\n",
+                                                         pci_name(bridge),
+                                                         'A' + pin, irq);
                                 }
                                 if (irq >= 0) {
-                                        printk(KERN_INFO "PCI->APIC IRQ transform: %s[%c] -> IRQ %d\n",
-                                                pci_name(dev), 'A' + pin, irq);
+                                        dev_info(&dev->dev, "PCI->APIC IRQ transform: INT %c -> IRQ %d\n", 'A' + pin, irq);
                                         dev->irq = irq;
                                 }
                         }
@@ -1231,25 +1223,24 @@ static int pirq_enable_irq(struct pci_dev *dev)
                                 irq = IO_APIC_get_PCI_irq_vector(bridge->bus->number,
                                                 PCI_SLOT(bridge->devfn), pin);
                                 if (irq >= 0)
-                                        printk(KERN_WARNING
-                                                "PCI: using PPB %s[%c] to get irq %d\n",
-                                                pci_name(bridge),
-                                                'A' + pin, irq);
+                                        dev_warn(&dev->dev, "using bridge %s "
+                                                 "INT %c to get IRQ %d\n",
+                                                 pci_name(bridge), 'A' + pin,
+                                                 irq);
                                 dev = bridge;
                         }
                         dev = temp_dev;
                         if (irq >= 0) {
-                                printk(KERN_INFO
-                                        "PCI->APIC IRQ transform: %s[%c] -> IRQ %d\n",
-                                        pci_name(dev), 'A' + pin, irq);
+                                dev_info(&dev->dev, "PCI->APIC IRQ transform: "
+                                         "INT %c -> IRQ %d\n", 'A' + pin, irq);
                                 dev->irq = irq;
                                 return 0;
                         } else
-                                msg = " Probably buggy MP table.";
+                                msg = "; probably buggy MP table";
                 } else if (pci_probe & PCI_BIOS_IRQ_SCAN)
                         msg = "";
                 else
-                        msg = " Please try using pci=biosirq.";
+                        msg = "; please try using pci=biosirq";
 
                 /*
                  * With IDE legacy devices the IRQ lookup failure is not
@@ -1259,9 +1250,8 @@ static int pirq_enable_irq(struct pci_dev *dev)
                                 !(dev->class & 0x5))
                         return 0;
 
-                printk(KERN_WARNING
-                        "PCI: No IRQ known for interrupt pin %c of device %s.%s\n",
-                        'A' + pin, pci_name(dev), msg);
+                dev_warn(&dev->dev, "can't find IRQ for PCI INT %c%s\n",
+                         'A' + pin, msg);
         }
         return 0;
 }
diff --git a/arch/x86/pci/numaq_32.c b/arch/x86/pci/numaq_32.c
index f4b16dc11dad..1177845d3186 100644
--- a/arch/x86/pci/numaq_32.c
+++ b/arch/x86/pci/numaq_32.c
@@ -131,13 +131,14 @@ static void __devinit pci_fixup_i450nx(struct pci_dev *d)
         u8 busno, suba, subb;
         int quad = BUS2QUAD(d->bus->number);
 
-        printk("PCI: Searching for i450NX host bridges on %s\n", pci_name(d));
+        dev_info(&d->dev, "searching for i450NX host bridges\n");
         reg = 0xd0;
         for(pxb=0; pxb<2; pxb++) {
                 pci_read_config_byte(d, reg++, &busno);
                 pci_read_config_byte(d, reg++, &suba);
                 pci_read_config_byte(d, reg++, &subb);
-                DBG("i450NX PXB %d: %02x/%02x/%02x\n", pxb, busno, suba, subb);
+                dev_dbg(&d->dev, "i450NX PXB %d: %02x/%02x/%02x\n",
+                        pxb, busno, suba, subb);
                 if (busno) {
                         /* Bus A */
                         pci_scan_bus_with_sysdata(QUADLOCAL2BUS(quad, busno));