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authorDavid S. Miller <davem@davemloft.net>2009-06-15 03:02:23 -0700
committerDavid S. Miller <davem@davemloft.net>2009-06-15 03:02:23 -0700
commit9cbc1cb8cd46ce1f7645b9de249b2ce8460129bb (patch)
tree8d104ec2a459346b99413b0b77421ca7b9936c1a /arch/x86/kernel/cpu/mcheck/winchip.c
parentca44d6e60f9de26281fda203f58b570e1748c015 (diff)
parent45e3e1935e2857c54783291107d33323b3ef33c8 (diff)
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts: Documentation/feature-removal-schedule.txt drivers/scsi/fcoe/fcoe.c net/core/drop_monitor.c net/core/net-traces.c
Diffstat (limited to 'arch/x86/kernel/cpu/mcheck/winchip.c')
-rw-r--r--arch/x86/kernel/cpu/mcheck/winchip.c17
1 files changed, 11 insertions, 6 deletions
diff --git a/arch/x86/kernel/cpu/mcheck/winchip.c b/arch/x86/kernel/cpu/mcheck/winchip.c
index 2a043d89811..81b02487090 100644
--- a/arch/x86/kernel/cpu/mcheck/winchip.c
+++ b/arch/x86/kernel/cpu/mcheck/winchip.c
@@ -2,11 +2,10 @@
* IDT Winchip specific Machine Check Exception Reporting
* (C) Copyright 2002 Alan Cox <alan@lxorguk.ukuu.org.uk>
*/
-
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/init.h>
#include <asm/processor.h>
#include <asm/system.h>
@@ -14,7 +13,7 @@
#include "mce.h"
-/* Machine check handler for WinChip C6 */
+/* Machine check handler for WinChip C6: */
static void winchip_machine_check(struct pt_regs *regs, long error_code)
{
printk(KERN_EMERG "CPU0: Machine Check Exception.\n");
@@ -25,12 +24,18 @@ static void winchip_machine_check(struct pt_regs *regs, long error_code)
void winchip_mcheck_init(struct cpuinfo_x86 *c)
{
u32 lo, hi;
+
machine_check_vector = winchip_machine_check;
+ /* Make sure the vector pointer is visible before we enable MCEs: */
wmb();
+
rdmsr(MSR_IDT_FCR1, lo, hi);
lo |= (1<<2); /* Enable EIERRINT (int 18 MCE) */
lo &= ~(1<<4); /* Enable MCE */
wrmsr(MSR_IDT_FCR1, lo, hi);
+
set_in_cr4(X86_CR4_MCE);
- printk(KERN_INFO "Winchip machine check reporting enabled on CPU#0.\n");
+
+ printk(KERN_INFO
+ "Winchip machine check reporting enabled on CPU#0.\n");
}