9 files changed, 43 insertions, 31 deletions

diff --git a/arch/ia64/include/asm/iommu.h b/arch/ia64/include/asm/iommu.h
index b6a809fa2995..105c93b00b1b 100644
--- a/arch/ia64/include/asm/iommu.h
+++ b/arch/ia64/include/asm/iommu.h
@@ -11,12 +11,10 @@ extern void no_iommu_init(void);
 extern int force_iommu, no_iommu;
 extern int iommu_pass_through;
 extern int iommu_detected;
-extern int iommu_group_mf;
 #else
 #define iommu_pass_through      (0)
 #define no_iommu                (1)
 #define iommu_detected          (0)
-#define iommu_group_mf          (0)
 #endif
 extern void iommu_dma_init(void);
 extern void machvec_init(const char *name);
diff --git a/arch/ia64/include/asm/kvm.h b/arch/ia64/include/asm/kvm.h
index b9f82c84f093..ec6c6b301238 100644
--- a/arch/ia64/include/asm/kvm.h
+++ b/arch/ia64/include/asm/kvm.h
@@ -26,6 +26,7 @@
 
 /* Select x86 specific features in <linux/kvm.h> */
 #define __KVM_HAVE_IOAPIC
+#define __KVM_HAVE_IRQ_LINE
 #define __KVM_HAVE_DEVICE_ASSIGNMENT
 
 /* Architectural interrupt line count. */
diff --git a/arch/ia64/kernel/ia64_ksyms.c b/arch/ia64/kernel/ia64_ksyms.c
index 7f4a0ed24152..5b7791dd3965 100644
--- a/arch/ia64/kernel/ia64_ksyms.c
+++ b/arch/ia64/kernel/ia64_ksyms.c
@@ -12,7 +12,7 @@ EXPORT_SYMBOL(memset);
 EXPORT_SYMBOL(memcpy);
 EXPORT_SYMBOL(strlen);
 
-#include<asm/pgtable.h>
+#include <asm/pgtable.h>
 EXPORT_SYMBOL_GPL(empty_zero_page);
 
 #include <asm/checksum.h>
diff --git a/arch/ia64/kernel/pci-dma.c b/arch/ia64/kernel/pci-dma.c
index 7cdc89b2483c..1ddcfe5ef353 100644
--- a/arch/ia64/kernel/pci-dma.c
+++ b/arch/ia64/kernel/pci-dma.c
@@ -32,7 +32,6 @@ int force_iommu __read_mostly;
 #endif
 
 int iommu_pass_through;
-int iommu_group_mf;
 
 /* Dummy device used for NULL arguments (normally ISA). Better would
    be probably a smaller DMA mask, but this is bug-to-bug compatible
diff --git a/arch/ia64/kernel/smpboot.c b/arch/ia64/kernel/smpboot.c
index 1113b8aba07f..963d2db53bfa 100644
--- a/arch/ia64/kernel/smpboot.c
+++ b/arch/ia64/kernel/smpboot.c
@@ -382,7 +382,6 @@ smp_callin (void)
         set_numa_node(cpu_to_node_map[cpuid]);
         set_numa_mem(local_memory_node(cpu_to_node_map[cpuid]));
 
-        ipi_call_lock_irq();
         spin_lock(&vector_lock);
         /* Setup the per cpu irq handling data structures */
         __setup_vector_irq(cpuid);
@@ -390,7 +389,6 @@ smp_callin (void)
         set_cpu_online(cpuid, true);
         per_cpu(cpu_state, cpuid) = CPU_ONLINE;
         spin_unlock(&vector_lock);
-        ipi_call_unlock_irq();
 
         smp_setup_percpu_timer();
 
diff --git a/arch/ia64/kvm/Kconfig b/arch/ia64/kvm/Kconfig
index 9806e55f91be..df5351e3eed7 100644
--- a/arch/ia64/kvm/Kconfig
+++ b/arch/ia64/kvm/Kconfig
@@ -19,6 +19,7 @@ if VIRTUALIZATION
 
 config KVM
         tristate "Kernel-based Virtual Machine (KVM) support"
+        depends on BROKEN
         depends on HAVE_KVM && MODULES && EXPERIMENTAL
         # for device assignment:
         depends on PCI
diff --git a/arch/ia64/kvm/vmm.c b/arch/ia64/kvm/vmm.c
index f0b9cac82414..176a12cd56de 100644
--- a/arch/ia64/kvm/vmm.c
+++ b/arch/ia64/kvm/vmm.c
@@ -20,9 +20,9 @@
  */
 
 
-#include<linux/kernel.h>
-#include<linux/module.h>
-#include<asm/fpswa.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <asm/fpswa.h>
 
 #include "vcpu.h"
 
diff --git a/arch/ia64/mm/fault.c b/arch/ia64/mm/fault.c
index 02d29c2a132a..8443daf4f515 100644
--- a/arch/ia64/mm/fault.c
+++ b/arch/ia64/mm/fault.c
@@ -72,6 +72,10 @@ mapped_kernel_page_is_present (unsigned long address)
         return pte_present(pte);
 }
 
+#       define VM_READ_BIT      0
+#       define VM_WRITE_BIT     1
+#       define VM_EXEC_BIT      2
+
 void __kprobes
 ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *regs)
 {
@@ -81,6 +85,12 @@ ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *re
         struct siginfo si;
         unsigned long mask;
         int fault;
+        unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
+
+        mask = ((((isr >> IA64_ISR_X_BIT) & 1UL) << VM_EXEC_BIT)
+                | (((isr >> IA64_ISR_W_BIT) & 1UL) << VM_WRITE_BIT));
+
+        flags |= ((mask & VM_WRITE) ? FAULT_FLAG_WRITE : 0);
 
         /* mmap_sem is performance critical.... */
         prefetchw(&mm->mmap_sem);
@@ -109,6 +119,7 @@ ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *re
         if (notify_page_fault(regs, TRAP_BRKPT))
                 return;
 
+retry:
         down_read(&mm->mmap_sem);
 
         vma = find_vma_prev(mm, address, &prev_vma);
@@ -130,10 +141,6 @@ ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *re
 
         /* OK, we've got a good vm_area for this memory area.  Check the access permissions: */
 
-#       define VM_READ_BIT      0
-#       define VM_WRITE_BIT     1
-#       define VM_EXEC_BIT      2
-
 #       if (((1 << VM_READ_BIT) != VM_READ || (1 << VM_WRITE_BIT) != VM_WRITE) \
             || (1 << VM_EXEC_BIT) != VM_EXEC)
 #               error File is out of sync with <linux/mm.h>.  Please update.
@@ -142,9 +149,6 @@ ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *re
         if (((isr >> IA64_ISR_R_BIT) & 1UL) && (!(vma->vm_flags & (VM_READ | VM_WRITE))))
                 goto bad_area;
 
-        mask = (  (((isr >> IA64_ISR_X_BIT) & 1UL) << VM_EXEC_BIT)
-                | (((isr >> IA64_ISR_W_BIT) & 1UL) << VM_WRITE_BIT));
-
         if ((vma->vm_flags & mask) != mask)
                 goto bad_area;
 
@@ -153,7 +157,11 @@ ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *re
          * sure we exit gracefully rather than endlessly redo the
          * fault.
          */
-        fault = handle_mm_fault(mm, vma, address, (mask & VM_WRITE) ? FAULT_FLAG_WRITE : 0);
+        fault = handle_mm_fault(mm, vma, address, flags);
+
+        if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
+                return;
+
         if (unlikely(fault & VM_FAULT_ERROR)) {
                 /*
                  * We ran out of memory, or some other thing happened
@@ -168,10 +176,24 @@ ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *re
                 }
                 BUG();
         }
-        if (fault & VM_FAULT_MAJOR)
-                current->maj_flt++;
-        else
-                current->min_flt++;
+
+        if (flags & FAULT_FLAG_ALLOW_RETRY) {
+                if (fault & VM_FAULT_MAJOR)
+                        current->maj_flt++;
+                else
+                        current->min_flt++;
+                if (fault & VM_FAULT_RETRY) {
+                        flags &= ~FAULT_FLAG_ALLOW_RETRY;
+
+                         /* No need to up_read(&mm->mmap_sem) as we would
+                         * have already released it in __lock_page_or_retry
+                         * in mm/filemap.c.
+                         */
+
+                        goto retry;
+                }
+        }
+
         up_read(&mm->mmap_sem);
         return;
 
diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c
index 524df4295c90..81acc7a57f3e 100644
--- a/arch/ia64/pci/pci.c
+++ b/arch/ia64/pci/pci.c
@@ -351,6 +351,8 @@ pci_acpi_scan_root(struct acpi_pci_root *root)
 #endif
 
         INIT_LIST_HEAD(&info.resources);
+        /* insert busn resource at first */
+        pci_add_resource(&info.resources, &root->secondary);
         acpi_walk_resources(device->handle, METHOD_NAME__CRS, count_window,
                         &windows);
         if (windows) {
@@ -384,7 +386,7 @@ pci_acpi_scan_root(struct acpi_pci_root *root)
                 return NULL;
         }
 
-        pbus->subordinate = pci_scan_child_bus(pbus);
+        pci_scan_child_bus(pbus);
         return pbus;
 
 out3:
@@ -496,15 +498,6 @@ pcibios_align_resource (void *data, const struct resource *res,
         return res->start;
 }
 
-/*
- * PCI BIOS setup, always defaults to SAL interface
- */
-char * __init
-pcibios_setup (char *str)
-{
-        return str;
-}
-
 int
 pci_mmap_page_range (struct pci_dev *dev, struct vm_area_struct *vma,
                      enum pci_mmap_state mmap_state, int write_combine)