Merge branch 'iommu-fixes-2.6.28' of git://git.kernel.org/pub/scm/linux/kernel/git...

[safe/jmp/linux-2.6] / arch / x86 / kernel / time_64.c

diff --git a/arch/x86/kernel/time_64.c b/arch/x86/kernel/time_64.c
index 8419382..cb19d65 100644 (file)
--- a/arch/x86/kernel/time_64.c
+++ b/arch/x86/kernel/time_64.c
@@ -16,6 +16,7 @@
 #include <linux/interrupt.h>
 #include <linux/module.h>
 #include <linux/time.h>
+#include <linux/mca.h>
 
 #include <asm/i8253.h>
 #include <asm/hpet.h>
@@ -48,12 +49,19 @@ unsigned long profile_pc(struct pt_regs *regs)
 }
 EXPORT_SYMBOL(profile_pc);
 
-static irqreturn_t timer_event_interrupt(int irq, void *dev_id)
+irqreturn_t timer_interrupt(int irq, void *dev_id)
 {
        add_pda(irq0_irqs, 1);
 
        global_clock_event->event_handler(global_clock_event);
 
+#ifdef CONFIG_MCA
+       if (MCA_bus) {
+               u8 irq_v = inb_p(0x61);       /* read the current state */
+               outb_p(irq_v|0x80, 0x61);     /* reset the IRQ */
+       }
+#endif
+
        return IRQ_HANDLED;
 }
 
@@ -104,7 +112,7 @@ unsigned long __init calibrate_cpu(void)
 }
 
 static struct irqaction irq0 = {
-       .handler        = timer_event_interrupt,
+       .handler        = timer_interrupt,
        .flags          = IRQF_DISABLED | IRQF_IRQPOLL | IRQF_NOBALANCING,
        .mask           = CPU_MASK_NONE,
        .name           = "timer"
@@ -122,10 +130,6 @@ void __init hpet_time_init(void)
 void __init time_init(void)
 {
        tsc_init();
-       if (cpu_has(&boot_cpu_data, X86_FEATURE_RDTSCP))
-               vgetcpu_mode = VGETCPU_RDTSCP;
-       else
-               vgetcpu_mode = VGETCPU_LSL;
 
        late_time_init = choose_time_init();
 }