14 files changed, 104 insertions, 49 deletions

diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 29dc0c89d4af..d37593c2f438 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -47,7 +47,7 @@
 #endif
 
 static int __initdata acpi_force = 0;
-
+u32 acpi_rsdt_forced;
 #ifdef  CONFIG_ACPI
 int acpi_disabled = 0;
 #else
@@ -1374,6 +1374,17 @@ static void __init acpi_process_madt(void)
                                "Invalid BIOS MADT, disabling ACPI\n");
                         disable_acpi();
                 }
+        } else {
+                /*
+                 * ACPI found no MADT, and so ACPI wants UP PIC mode.
+                 * In the event an MPS table was found, forget it.
+                 * Boot with "acpi=off" to use MPS on such a system.
+                 */
+                if (smp_found_config) {
+                        printk(KERN_WARNING PREFIX
+                                "No APIC-table, disabling MPS\n");
+                        smp_found_config = 0;
+                }
         }
 
         /*
@@ -1809,6 +1820,10 @@ static int __init parse_acpi(char *arg)
                         disable_acpi();
                 acpi_ht = 1;
         }
+        /* acpi=rsdt use RSDT instead of XSDT */
+        else if (strcmp(arg, "rsdt") == 0) {
+                acpi_rsdt_forced = 1;
+        }
         /* "acpi=noirq" disables ACPI interrupt routing */
         else if (strcmp(arg, "noirq") == 0) {
                 acpi_noirq_set();
diff --git a/arch/x86/kernel/acpi/cstate.c b/arch/x86/kernel/acpi/cstate.c
index c2502eb9aa83..a4805b3b4095 100644
--- a/arch/x86/kernel/acpi/cstate.c
+++ b/arch/x86/kernel/acpi/cstate.c
@@ -56,6 +56,7 @@ static struct cstate_entry *cpu_cstate_entry;	/* per CPU ptr */
 static short mwait_supported[ACPI_PROCESSOR_MAX_POWER];
 
 #define MWAIT_SUBSTATE_MASK     (0xf)
+#define MWAIT_CSTATE_MASK       (0xf)
 #define MWAIT_SUBSTATE_SIZE     (4)
 
 #define CPUID_MWAIT_LEAF (5)
@@ -98,7 +99,8 @@ int acpi_processor_ffh_cstate_probe(unsigned int cpu,
         cpuid(CPUID_MWAIT_LEAF, &eax, &ebx, &ecx, &edx);
 
         /* Check whether this particular cx_type (in CST) is supported or not */
-        cstate_type = (cx->address >> MWAIT_SUBSTATE_SIZE) + 1;
+        cstate_type = ((cx->address >> MWAIT_SUBSTATE_SIZE) &
+                        MWAIT_CSTATE_MASK) + 1;
         edx_part = edx >> (cstate_type * MWAIT_SUBSTATE_SIZE);
         num_cstate_subtype = edx_part & MWAIT_SUBSTATE_MASK;
 
diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c
index 806b4e9051b4..707c1f6f95fa 100644
--- a/arch/x86/kernel/acpi/sleep.c
+++ b/arch/x86/kernel/acpi/sleep.c
@@ -159,6 +159,8 @@ static int __init acpi_sleep_setup(char *str)
 #endif
                 if (strncmp(str, "old_ordering", 12) == 0)
                         acpi_old_suspend_ordering();
+                if (strncmp(str, "s4_nonvs", 8) == 0)
+                        acpi_s4_no_nvs();
                 str = strchr(str, ',');
                 if (str != NULL)
                         str += strspn(str, ", \t");
diff --git a/arch/x86/kernel/cpu/cpufreq/longhaul.c b/arch/x86/kernel/cpu/cpufreq/longhaul.c
index b0461856acfb..a4cff5d6e380 100644
--- a/arch/x86/kernel/cpu/cpufreq/longhaul.c
+++ b/arch/x86/kernel/cpu/cpufreq/longhaul.c
@@ -982,7 +982,7 @@ static int __init longhaul_init(void)
         case 10:
                 printk(KERN_ERR PFX "Use acpi-cpufreq driver for VIA C7\n");
         default:
-                ;;
+                ;
         }
 
         return -ENODEV;
diff --git a/arch/x86/kernel/cpu/cpufreq/p4-clockmod.c b/arch/x86/kernel/cpu/cpufreq/p4-clockmod.c
index b8e05ee4f736..beea4466b063 100644
--- a/arch/x86/kernel/cpu/cpufreq/p4-clockmod.c
+++ b/arch/x86/kernel/cpu/cpufreq/p4-clockmod.c
@@ -160,6 +160,7 @@ static unsigned int cpufreq_p4_get_frequency(struct cpuinfo_x86 *c)
                 switch (c->x86_model) {
                 case 0x0E: /* Core */
                 case 0x0F: /* Core Duo */
+                case 0x16: /* Celeron Core */
                         p4clockmod_driver.flags |= CPUFREQ_CONST_LOOPS;
                         return speedstep_get_processor_frequency(SPEEDSTEP_PROCESSOR_PCORE);
                 case 0x0D: /* Pentium M (Dothan) */
@@ -171,7 +172,9 @@ static unsigned int cpufreq_p4_get_frequency(struct cpuinfo_x86 *c)
         }
 
         if (c->x86 != 0xF) {
-                printk(KERN_WARNING PFX "Unknown p4-clockmod-capable CPU. Please send an e-mail to <cpufreq@vger.kernel.org>\n");
+                if (!cpu_has(c, X86_FEATURE_EST))
+                        printk(KERN_WARNING PFX "Unknown p4-clockmod-capable CPU. "
+                                "Please send an e-mail to <cpufreq@vger.kernel.org>\n");
                 return 0;
         }
 
@@ -274,6 +277,7 @@ static struct cpufreq_driver p4clockmod_driver = {
         .name           = "p4-clockmod",
         .owner          = THIS_MODULE,
         .attr           = p4clockmod_attr,
+        .hide_interface = 1,
 };
 
 
diff --git a/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c b/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c
index 3b5f06423e77..f0ea6fa2f53c 100644
--- a/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c
+++ b/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c
@@ -459,9 +459,7 @@ static int centrino_verify (struct cpufreq_policy *policy)
  * Sets a new CPUFreq policy.
  */
 struct allmasks {
-        cpumask_t               online_policy_cpus;
         cpumask_t               saved_mask;
-        cpumask_t               set_mask;
         cpumask_t               covered_cpus;
 };
 
@@ -475,9 +473,7 @@ static int centrino_target (struct cpufreq_policy *policy,
         int                     retval = 0;
         unsigned int            j, k, first_cpu, tmp;
         CPUMASK_ALLOC(allmasks);
-        CPUMASK_PTR(online_policy_cpus, allmasks);
         CPUMASK_PTR(saved_mask, allmasks);
-        CPUMASK_PTR(set_mask, allmasks);
         CPUMASK_PTR(covered_cpus, allmasks);
 
         if (unlikely(allmasks == NULL))
@@ -497,30 +493,28 @@ static int centrino_target (struct cpufreq_policy *policy,
                 goto out;
         }
 
-#ifdef CONFIG_HOTPLUG_CPU
-        /* cpufreq holds the hotplug lock, so we are safe from here on */
-        cpus_and(*online_policy_cpus, cpu_online_map, policy->cpus);
-#else
-        *online_policy_cpus = policy->cpus;
-#endif
-
         *saved_mask = current->cpus_allowed;
         first_cpu = 1;
         cpus_clear(*covered_cpus);
-        for_each_cpu_mask_nr(j, *online_policy_cpus) {
+        for_each_cpu_mask_nr(j, policy->cpus) {
+                const cpumask_t *mask;
+
+                /* cpufreq holds the hotplug lock, so we are safe here */
+                if (!cpu_online(j))
+                        continue;
+
                 /*
                  * Support for SMP systems.
                  * Make sure we are running on CPU that wants to change freq
                  */
-                cpus_clear(*set_mask);
                 if (policy->shared_type == CPUFREQ_SHARED_TYPE_ANY)
-                        cpus_or(*set_mask, *set_mask, *online_policy_cpus);
+                        mask = &policy->cpus;
                 else
-                        cpu_set(j, *set_mask);
+                        mask = &cpumask_of_cpu(j);
 
-                set_cpus_allowed_ptr(current, set_mask);
+                set_cpus_allowed_ptr(current, mask);
                 preempt_disable();
-                if (unlikely(!cpu_isset(smp_processor_id(), *set_mask))) {
+                if (unlikely(!cpu_isset(smp_processor_id(), *mask))) {
                         dprintk("couldn't limit to CPUs in this domain\n");
                         retval = -EAGAIN;
                         if (first_cpu) {
@@ -548,7 +542,9 @@ static int centrino_target (struct cpufreq_policy *policy,
                         dprintk("target=%dkHz old=%d new=%d msr=%04x\n",
                                 target_freq, freqs.old, freqs.new, msr);
 
-                        for_each_cpu_mask_nr(k, *online_policy_cpus) {
+                        for_each_cpu_mask_nr(k, policy->cpus) {
+                                if (!cpu_online(k))
+                                        continue;
                                 freqs.cpu = k;
                                 cpufreq_notify_transition(&freqs,
                                         CPUFREQ_PRECHANGE);
@@ -571,7 +567,9 @@ static int centrino_target (struct cpufreq_policy *policy,
                 preempt_enable();
         }
 
-        for_each_cpu_mask_nr(k, *online_policy_cpus) {
+        for_each_cpu_mask_nr(k, policy->cpus) {
+                if (!cpu_online(k))
+                        continue;
                 freqs.cpu = k;
                 cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
         }
@@ -584,18 +582,17 @@ static int centrino_target (struct cpufreq_policy *policy,
                  * Best effort undo..
                  */
 
-                if (!cpus_empty(*covered_cpus))
-                        for_each_cpu_mask_nr(j, *covered_cpus) {
-                                set_cpus_allowed_ptr(current,
-                                                     &cpumask_of_cpu(j));
-                                wrmsr(MSR_IA32_PERF_CTL, oldmsr, h);
-                        }
+                for_each_cpu_mask_nr(j, *covered_cpus) {
+                        set_cpus_allowed_ptr(current, &cpumask_of_cpu(j));
+                        wrmsr(MSR_IA32_PERF_CTL, oldmsr, h);
+                }
 
                 tmp = freqs.new;
                 freqs.new = freqs.old;
                 freqs.old = tmp;
-                for_each_cpu_mask_nr(j, *online_policy_cpus) {
-                        freqs.cpu = j;
+                for_each_cpu_mask_nr(j, policy->cpus) {
+                        if (!cpu_online(j))
+                                continue;
                         cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
                         cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
                 }
diff --git a/arch/x86/kernel/cpu/cpufreq/speedstep-lib.c b/arch/x86/kernel/cpu/cpufreq/speedstep-lib.c
index 98d4fdb7dc04..cdac7d62369b 100644
--- a/arch/x86/kernel/cpu/cpufreq/speedstep-lib.c
+++ b/arch/x86/kernel/cpu/cpufreq/speedstep-lib.c
@@ -139,6 +139,15 @@ static unsigned int pentium_core_get_frequency(void)
         case 3:
                 fsb = 166667;
                 break;
+        case 2:
+                fsb = 200000;
+                break;
+        case 0:
+                fsb = 266667;
+                break;
+        case 4:
+                fsb = 333333;
+                break;
         default:
                 printk(KERN_ERR "PCORE - MSR_FSB_FREQ undefined value");
         }
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 65a13943e098..e85826829cf2 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -665,6 +665,27 @@ void __init e820_mark_nosave_regions(unsigned long limit_pfn)
 }
 #endif
 
+#ifdef CONFIG_HIBERNATION
+/**
+ * Mark ACPI NVS memory region, so that we can save/restore it during
+ * hibernation and the subsequent resume.
+ */
+static int __init e820_mark_nvs_memory(void)
+{
+        int i;
+
+        for (i = 0; i < e820.nr_map; i++) {
+                struct e820entry *ei = &e820.map[i];
+
+                if (ei->type == E820_NVS)
+                        hibernate_nvs_register(ei->addr, ei->size);
+        }
+
+        return 0;
+}
+core_initcall(e820_mark_nvs_memory);
+#endif
+
 /*
  * Early reserved memory areas.
  */
diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
index 744aa7fc49d5..76b8cd953dee 100644
--- a/arch/x86/kernel/early-quirks.c
+++ b/arch/x86/kernel/early-quirks.c
@@ -201,6 +201,12 @@ struct chipset {
         void (*f)(int num, int slot, int func);
 };
 
+/*
+ * Only works for devices on the root bus. If you add any devices
+ * not on bus 0 readd another loop level in early_quirks(). But
+ * be careful because at least the Nvidia quirk here relies on
+ * only matching on bus 0.
+ */
 static struct chipset early_qrk[] __initdata = {
         { PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID,
           PCI_CLASS_BRIDGE_PCI, PCI_ANY_ID, QFLAG_APPLY_ONCE, nvidia_bugs },
@@ -267,17 +273,17 @@ static int __init check_dev_quirk(int num, int slot, int func)
 
 void __init early_quirks(void)
 {
-        int num, slot, func;
+        int slot, func;
 
         if (!early_pci_allowed())
                 return;
 
         /* Poor man's PCI discovery */
-        for (num = 0; num < 32; num++)
-                for (slot = 0; slot < 32; slot++)
-                        for (func = 0; func < 8; func++) {
-                                /* Only probe function 0 on single fn devices */
-                                if (check_dev_quirk(num, slot, func))
-                                        break;
-                        }
+        /* Only scan the root bus */
+        for (slot = 0; slot < 32; slot++)
+                for (func = 0; func < 8; func++) {
+                        /* Only probe function 0 on single fn devices */
+                        if (check_dev_quirk(0, slot, func))
+                                break;
+                }
 }
diff --git a/arch/x86/kernel/kprobes.c b/arch/x86/kernel/kprobes.c
index 6c27679ec6aa..884d985b8b82 100644
--- a/arch/x86/kernel/kprobes.c
+++ b/arch/x86/kernel/kprobes.c
@@ -376,9 +376,10 @@ void __kprobes arch_disarm_kprobe(struct kprobe *p)
 
 void __kprobes arch_remove_kprobe(struct kprobe *p)
 {
-        mutex_lock(&kprobe_mutex);
-        free_insn_slot(p->ainsn.insn, (p->ainsn.boostable == 1));
-        mutex_unlock(&kprobe_mutex);
+        if (p->ainsn.insn) {
+                free_insn_slot(p->ainsn.insn, (p->ainsn.boostable == 1));
+                p->ainsn.insn = NULL;
+        }
 }
 
 static void __kprobes save_previous_kprobe(struct kprobe_ctlblk *kcb)
@@ -694,7 +695,7 @@ static __used __kprobes void *trampoline_handler(struct pt_regs *regs)
         /*
          * It is possible to have multiple instances associated with a given
          * task either because multiple functions in the call path have
-         * return probes installed on them, and/or more then one
+         * return probes installed on them, and/or more than one
          * return probe was registered for a target function.
          *
          * We can handle this because:
diff --git a/arch/x86/kernel/mfgpt_32.c b/arch/x86/kernel/mfgpt_32.c
index c12314c9e86f..8815f3c7fec7 100644
--- a/arch/x86/kernel/mfgpt_32.c
+++ b/arch/x86/kernel/mfgpt_32.c
@@ -252,7 +252,7 @@ EXPORT_SYMBOL_GPL(geode_mfgpt_alloc_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 then the PIT.  This isn't a general purpose MFGPT driver, but
+ * 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.
  */
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 19a1044a0cd9..b25428533141 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -38,7 +38,7 @@ EXPORT_SYMBOL(bad_dma_address);
    be probably a smaller DMA mask, but this is bug-to-bug compatible
    to older i386. */
 struct device x86_dma_fallback_dev = {
-        .bus_id = "fallback device",
+        .init_name = "fallback device",
         .coherent_dma_mask = DMA_32BIT_MASK,
         .dma_mask = &x86_dma_fallback_dev.coherent_dma_mask,
 };
diff --git a/arch/x86/kernel/pci-swiotlb_64.c b/arch/x86/kernel/pci-swiotlb_64.c
index 242c3440687f..d59c91747665 100644
--- a/arch/x86/kernel/pci-swiotlb_64.c
+++ b/arch/x86/kernel/pci-swiotlb_64.c
@@ -13,7 +13,7 @@
 
 int swiotlb __read_mostly;
 
-void *swiotlb_alloc_boot(size_t size, unsigned long nslabs)
+void * __init swiotlb_alloc_boot(size_t size, unsigned long nslabs)
 {
         return alloc_bootmem_low_pages(size);
 }
@@ -23,7 +23,7 @@ void *swiotlb_alloc(unsigned order, unsigned long nslabs)
         return (void *)__get_free_pages(GFP_DMA | __GFP_NOWARN, order);
 }
 
-dma_addr_t swiotlb_phys_to_bus(phys_addr_t paddr)
+dma_addr_t swiotlb_phys_to_bus(struct device *hwdev, phys_addr_t paddr)
 {
         return paddr;
 }
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index ce6650eb64e9..c9a666cdd3db 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -20,7 +20,6 @@
 #include <linux/module.h>
 #include <linux/ptrace.h>
 #include <linux/string.h>
-#include <linux/unwind.h>
 #include <linux/delay.h>
 #include <linux/errno.h>
 #include <linux/kexec.h>
@@ -51,7 +50,6 @@
 #include <asm/debugreg.h>
 #include <asm/atomic.h>
 #include <asm/system.h>
-#include <asm/unwind.h>
 #include <asm/traps.h>
 #include <asm/desc.h>
 #include <asm/i387.h>