9 files changed, 36 insertions, 28 deletions

diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index 0635015d0aaa..bd7acc71e8a9 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -678,6 +678,30 @@ static int __init acpi_parse_fadt(struct acpi_table_header *table)
         return 0;
 }
 
+int __init early_acpi_boot_init(void)
+{
+        int ret;
+
+        /*
+         * do a partial walk of MADT to determine how many CPUs
+         * we have including offline CPUs
+         */
+        if (acpi_table_parse(ACPI_SIG_MADT, acpi_parse_madt)) {
+                printk(KERN_ERR PREFIX "Can't find MADT\n");
+                return 0;
+        }
+
+        ret = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_SAPIC,
+                acpi_parse_lsapic, NR_CPUS);
+        if (ret < 1)
+                printk(KERN_ERR PREFIX
+                       "Error parsing MADT - no LAPIC entries\n");
+
+        return 0;
+}
+
+
+
 int __init acpi_boot_init(void)
 {
 
@@ -701,11 +725,6 @@ int __init acpi_boot_init(void)
                 printk(KERN_ERR PREFIX
                        "Error parsing LAPIC address override entry\n");
 
-        if (acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_SAPIC, acpi_parse_lsapic, NR_CPUS)
-            < 1)
-                printk(KERN_ERR PREFIX
-                       "Error parsing MADT - no LAPIC entries\n");
-
         if (acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_APIC_NMI, acpi_parse_lapic_nmi, 0)
             < 0)
                 printk(KERN_ERR PREFIX "Error parsing LAPIC NMI entry\n");
diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S
index 7ef0c594f5ed..d435f4a7a96c 100644
--- a/arch/ia64/kernel/entry.S
+++ b/arch/ia64/kernel/entry.S
@@ -499,6 +499,7 @@ GLOBAL_ENTRY(prefetch_stack)
 END(prefetch_stack)
 
 GLOBAL_ENTRY(kernel_execve)
+        rum psr.ac
         mov r15=__NR_execve                     // put syscall number in place
         break __BREAK_SYSCALL
         br.ret.sptk.many rp
diff --git a/arch/ia64/kernel/head.S b/arch/ia64/kernel/head.S
index 66e491d8baac..59301c472800 100644
--- a/arch/ia64/kernel/head.S
+++ b/arch/ia64/kernel/head.S
@@ -260,7 +260,7 @@ start_ap:
          * Switch into virtual mode:
          */
         movl r16=(IA64_PSR_IT|IA64_PSR_IC|IA64_PSR_DT|IA64_PSR_RT|IA64_PSR_DFH|IA64_PSR_BN \
-                  |IA64_PSR_DI)
+                  |IA64_PSR_DI|IA64_PSR_AC)
         ;;
         mov cr.ipsr=r16
         movl r17=1f
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index 7dd96c127177..bab1de2d2f6a 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -1139,7 +1139,7 @@ ia64_mca_modify_original_stack(struct pt_regs *regs,
         return previous_current;
 
 no_mod:
-        printk(KERN_INFO "cpu %d, %s %s, original stack not modified\n",
+        mprintk(KERN_INFO "cpu %d, %s %s, original stack not modified\n",
                         smp_processor_id(), type, msg);
         return previous_current;
 }
diff --git a/arch/ia64/kernel/paravirt.c b/arch/ia64/kernel/paravirt.c
index de35d8e8b7d2..9f14c16f6369 100644
--- a/arch/ia64/kernel/paravirt.c
+++ b/arch/ia64/kernel/paravirt.c
@@ -130,7 +130,7 @@ ia64_native_getreg_func(int regnum)
         unsigned long res = -1;
         switch (regnum) {
         CASE_GET_REG(GP);
-        CASE_GET_REG(IP);
+        /*CASE_GET_REG(IP);*/ /* returned ip value shouldn't be constant */
         CASE_GET_REG(PSR);
         CASE_GET_REG(TP);
         CASE_GET_REG(SP);
diff --git a/arch/ia64/kernel/pci-dma.c b/arch/ia64/kernel/pci-dma.c
index 10a75b557650..2a92f637431d 100644
--- a/arch/ia64/kernel/pci-dma.c
+++ b/arch/ia64/kernel/pci-dma.c
@@ -12,16 +12,13 @@
 #include <asm/machvec.h>
 #include <linux/dma-mapping.h>
 
-#include <asm/machvec.h>
 #include <asm/system.h>
 
 #ifdef CONFIG_DMAR
 
 #include <linux/kernel.h>
-#include <linux/string.h>
 
 #include <asm/page.h>
-#include <asm/iommu.h>
 
 dma_addr_t bad_dma_address __read_mostly;
 EXPORT_SYMBOL(bad_dma_address);
@@ -89,13 +86,6 @@ int iommu_dma_supported(struct device *dev, u64 mask)
 {
         struct dma_mapping_ops *ops = get_dma_ops(dev);
 
-#ifdef CONFIG_PCI
-        if (mask > 0xffffffff && forbid_dac > 0) {
-                dev_info(dev, "Disallowing DAC for device\n");
-                return 0;
-        }
-#endif
-
         if (ops->dma_supported_op)
                 return ops->dma_supported_op(dev, mask);
 
diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index ada4605d1223..6543a5547c84 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -1995,11 +1995,6 @@ pfm_close(struct inode *inode, struct file *filp)
                 return -EBADF;
         }
 
-        if (filp->f_flags & FASYNC) {
-                DPRINT(("cleaning up async_queue=%p\n", ctx->ctx_async_queue));
-                pfm_do_fasync(-1, filp, ctx, 0);
-        }
-
         PROTECT_CTX(ctx, flags);
 
         state     = ctx->ctx_state;
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index ae7911702bf8..865af27c7737 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -359,7 +359,7 @@ reserve_memory (void)
         }
 #endif
 
-#ifdef CONFIG_CRASH_KERNEL
+#ifdef CONFIG_CRASH_DUMP
         if (reserve_elfcorehdr(&rsvd_region[n].start,
                                &rsvd_region[n].end) == 0)
                 n++;
@@ -561,8 +561,12 @@ setup_arch (char **cmdline_p)
 #ifdef CONFIG_ACPI
         /* Initialize the ACPI boot-time table parser */
         acpi_table_init();
+        early_acpi_boot_init();
 # ifdef CONFIG_ACPI_NUMA
         acpi_numa_init();
+#ifdef CONFIG_ACPI_HOTPLUG_CPU
+        prefill_possible_map();
+#endif
         per_cpu_scan_finalize((cpus_weight(early_cpu_possible_map) == 0 ?
                 32 : cpus_weight(early_cpu_possible_map)),
                 additional_cpus > 0 ? additional_cpus : 0);
@@ -853,9 +857,6 @@ void __init
 setup_per_cpu_areas (void)
 {
         /* start_kernel() requires this... */
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
-        prefill_possible_map();
-#endif
 }
 
 /*
diff --git a/arch/ia64/kernel/topology.c b/arch/ia64/kernel/topology.c
index 26228e2d01ae..c75b914f2d6b 100644
--- a/arch/ia64/kernel/topology.c
+++ b/arch/ia64/kernel/topology.c
@@ -53,10 +53,12 @@ int __ref arch_register_cpu(int num)
 }
 EXPORT_SYMBOL(arch_register_cpu);
 
-void arch_unregister_cpu(int num)
+void __ref arch_unregister_cpu(int num)
 {
         unregister_cpu(&sysfs_cpus[num].cpu);
+#ifdef CONFIG_ACPI
         unmap_cpu_from_node(num, cpu_to_node(num));
+#endif
 }
 EXPORT_SYMBOL(arch_unregister_cpu);
 #else