X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;ds=sidebyside;f=arch%2Fx86%2Fkernel%2Ftime_64.c;h=cb19d650c21643599aa1423a57b64a85ee26afe8;hb=08d19f51f05a68ce89a289320ce4ed96e757df72;hp=e3d49c553af22aec7c773006b7018325dccb6ec0;hpb=30d38542ec777468bb6a31829076a2dbc5690e35;p=linux-2.6-omap-h63xx.git

diff --git a/arch/x86/kernel/time_64.c b/arch/x86/kernel/time_64.c
index e3d49c553af..cb19d650c21 100644
--- 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>
@@ -33,23 +34,34 @@ unsigned long profile_pc(struct pt_regs *regs)
 	/* Assume the lock function has either no stack frame or a copy
 	   of flags from PUSHF
 	   Eflags always has bits 22 and up cleared unlike kernel addresses. */
-	if (!user_mode(regs) && in_lock_functions(pc)) {
+	if (!user_mode_vm(regs) && in_lock_functions(pc)) {
+#ifdef CONFIG_FRAME_POINTER
+		return *(unsigned long *)(regs->bp + sizeof(long));
+#else
 		unsigned long *sp = (unsigned long *)regs->sp;
 		if (sp[0] >> 22)
 			return sp[0];
 		if (sp[1] >> 22)
 			return sp[1];
+#endif
 	}
 	return pc;
 }
 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;
 }
 
@@ -100,7 +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"
@@ -111,16 +123,13 @@ void __init hpet_time_init(void)
 	if (!hpet_enable())
 		setup_pit_timer();
 
+	irq0.mask = cpumask_of_cpu(0);
 	setup_irq(0, &irq0);
 }
 
 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();
 }