7 files changed, 54 insertions, 30 deletions

diff --git a/arch/ia64/kernel/cpufreq/acpi-cpufreq.c b/arch/ia64/kernel/cpufreq/acpi-cpufreq.c
index 15c08d52f09f..8c6ec7070844 100644
--- a/arch/ia64/kernel/cpufreq/acpi-cpufreq.c
+++ b/arch/ia64/kernel/cpufreq/acpi-cpufreq.c
@@ -113,10 +113,8 @@ processor_get_freq (
 
         saved_mask = current->cpus_allowed;
         set_cpus_allowed(current, cpumask_of_cpu(cpu));
-        if (smp_processor_id() != cpu) {
-                ret = -EAGAIN;
+        if (smp_processor_id() != cpu)
                 goto migrate_end;
-        }
 
         /* processor_get_pstate gets the instantaneous frequency */
         ret = processor_get_pstate(&value);
@@ -125,7 +123,7 @@ processor_get_freq (
                 set_cpus_allowed(current, saved_mask);
                 printk(KERN_WARNING "get performance failed with error %d\n",
                        ret);
-                ret = -EAGAIN;
+                ret = 0;
                 goto migrate_end;
         }
         clock_freq = extract_clock(data, value, cpu);
diff --git a/arch/ia64/kernel/irq.c b/arch/ia64/kernel/irq.c
index cc3ee4ef37af..44be1c952b7c 100644
--- a/arch/ia64/kernel/irq.c
+++ b/arch/ia64/kernel/irq.c
@@ -33,6 +33,11 @@ void ack_bad_irq(unsigned int irq)
 }
 
 #ifdef CONFIG_IA64_GENERIC
+ia64_vector __ia64_irq_to_vector(int irq)
+{
+        return irq_cfg[irq].vector;
+}
+
 unsigned int __ia64_local_vector_to_irq (ia64_vector vec)
 {
         return __get_cpu_var(vector_irq)[vec];
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index ff28620cb992..63b73f3d4c9f 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -2018,22 +2018,26 @@ ia64_mca_late_init(void)
 
                 if (cpe_vector >= 0) {
                         /* If platform supports CPEI, enable the irq. */
-                        cpe_poll_enabled = 0;
-                        for (irq = 0; irq < NR_IRQS; ++irq)
-                                if (irq_to_vector(irq) == cpe_vector) {
-                                        desc = irq_desc + irq;
-                                        desc->status |= IRQ_PER_CPU;
-                                        setup_irq(irq, &mca_cpe_irqaction);
-                                        ia64_cpe_irq = irq;
-                                }
-                        ia64_mca_register_cpev(cpe_vector);
-                        IA64_MCA_DEBUG("%s: CPEI/P setup and enabled.\n", __FUNCTION__);
-                } else {
-                        /* If platform doesn't support CPEI, get the timer going. */
-                        if (cpe_poll_enabled) {
-                                ia64_mca_cpe_poll(0UL);
-                                IA64_MCA_DEBUG("%s: CPEP setup and enabled.\n", __FUNCTION__);
+                        irq = local_vector_to_irq(cpe_vector);
+                        if (irq > 0) {
+                                cpe_poll_enabled = 0;
+                                desc = irq_desc + irq;
+                                desc->status |= IRQ_PER_CPU;
+                                setup_irq(irq, &mca_cpe_irqaction);
+                                ia64_cpe_irq = irq;
+                                ia64_mca_register_cpev(cpe_vector);
+                                IA64_MCA_DEBUG("%s: CPEI/P setup and enabled.\n",
+                                        __FUNCTION__);
+                                return 0;
                         }
+                        printk(KERN_ERR "%s: Failed to find irq for CPE "
+                                        "interrupt handler, vector %d\n",
+                                        __FUNCTION__, cpe_vector);
+                }
+                /* If platform doesn't support CPEI, get the timer going. */
+                if (cpe_poll_enabled) {
+                        ia64_mca_cpe_poll(0UL);
+                        IA64_MCA_DEBUG("%s: CPEP setup and enabled.\n", __FUNCTION__);
                 }
         }
 #endif
diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c
index 4158906c45aa..c613fc0e91cc 100644
--- a/arch/ia64/kernel/process.c
+++ b/arch/ia64/kernel/process.c
@@ -198,9 +198,13 @@ default_idle (void)
 {
         local_irq_enable();
         while (!need_resched()) {
-                if (can_do_pal_halt)
-                        safe_halt();
-                else
+                if (can_do_pal_halt) {
+                        local_irq_disable();
+                        if (!need_resched()) {
+                                safe_halt();
+                        }
+                        local_irq_enable();
+                } else
                         cpu_relax();
         }
 }
diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c
index 00f803246948..122444a97897 100644
--- a/arch/ia64/kernel/ptrace.c
+++ b/arch/ia64/kernel/ptrace.c
@@ -951,10 +951,14 @@ access_uarea (struct task_struct *child, unsigned long addr,
                         return 0;
 
                       case PT_CR_IPSR:
-                        if (write_access)
-                                pt->cr_ipsr = ((*data & IPSR_MASK)
+                        if (write_access) {
+                                unsigned long tmp = *data;
+                                /* psr.ri==3 is a reserved value: SDM 2:25 */
+                                if ((tmp & IA64_PSR_RI) == IA64_PSR_RI)
+                                        tmp &= ~IA64_PSR_RI;
+                                pt->cr_ipsr = ((tmp & IPSR_MASK)
                                                | (pt->cr_ipsr & ~IPSR_MASK));
-                        else
+                        } else
                                 *data = (pt->cr_ipsr & IPSR_MASK);
                         return 0;
 
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index cd9a37a552c3..407efea04bf5 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -389,6 +389,13 @@ early_console_setup (char *cmdline)
         if (!efi_setup_pcdp_console(cmdline))
                 earlycons++;
 #endif
+#ifdef CONFIG_HP_SIMSERIAL_CONSOLE
+        {
+                extern struct console hpsim_cons;
+                register_console(&hpsim_cons);
+                earlycons++;
+        }
+#endif
 
         return (earlycons) ? 0 : -1;
 }
diff --git a/arch/ia64/kernel/vmlinux.lds.S b/arch/ia64/kernel/vmlinux.lds.S
index 83e80677de70..00232b4357ba 100644
--- a/arch/ia64/kernel/vmlinux.lds.S
+++ b/arch/ia64/kernel/vmlinux.lds.S
@@ -20,6 +20,8 @@ PHDRS {
   code   PT_LOAD;
   percpu PT_LOAD;
   data   PT_LOAD;
+  note   PT_NOTE;
+  unwind 0x70000001; /* PT_IA_64_UNWIND, but ld doesn't match the name */
 }
 SECTIONS
 {
@@ -62,6 +64,9 @@ SECTIONS
 
   /* Read-only data */
 
+  NOTES :code :note             /* put .notes in text and mark in PT_NOTE  */
+  code_continues : {} :code     /* switch back to regular program...  */
+
   /* Exception table */
   . = ALIGN(16);
   __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET)
@@ -99,7 +104,8 @@ SECTIONS
           __start_unwind = .;
           *(.IA_64.unwind*)
           __end_unwind = .;
-        }
+        } :code :unwind
+  code_continues2 : {} : code
 
   RODATA
 
@@ -276,10 +282,6 @@ SECTIONS
   .debug_typenames 0 : { *(.debug_typenames) }
   .debug_varnames  0 : { *(.debug_varnames) }
   /* These must appear regardless of  .  */
-  /* Discard them for now since Intel SoftSDV cannot handle them.
-  .comment 0 : { *(.comment) }
-  .note 0 : { *(.note) }
-  */
   /DISCARD/ : { *(.comment) }
   /DISCARD/ : { *(.note) }
 }