aboutsummaryrefslogtreecommitdiff
path: root/arch/x86/kernel/cpu/mcheck/non-fatal.c
diff options
context:
space:
mode:
authorIngo Molnar <mingo@elte.hu>2009-06-17 13:06:17 +0200
committerIngo Molnar <mingo@elte.hu>2009-06-17 13:06:17 +0200
commita3d06cc6aa3e765dc2bf98626f87272dcf641dca (patch)
treeaa3e49b58f08d6c0ea55cdca4fb5e6c8ba6ae333 /arch/x86/kernel/cpu/mcheck/non-fatal.c
parent0990b1c65729012a63e0eeca93aaaafea4e9a064 (diff)
parent65795efbd380a832ae508b04dba8f8e53f0b84d9 (diff)
Merge branch 'linus' into perfcounters/core
Conflicts: arch/x86/include/asm/kmap_types.h include/linux/mm.h include/asm-generic/kmap_types.h Merge reason: We crossed changes with kmap_types.h cleanups in mainline. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/cpu/mcheck/non-fatal.c')
-rw-r--r--arch/x86/kernel/cpu/mcheck/non-fatal.c57
1 files changed, 29 insertions, 28 deletions
diff --git a/arch/x86/kernel/cpu/mcheck/non-fatal.c b/arch/x86/kernel/cpu/mcheck/non-fatal.c
index a74af128efc..70b710420f7 100644
--- a/arch/x86/kernel/cpu/mcheck/non-fatal.c
+++ b/arch/x86/kernel/cpu/mcheck/non-fatal.c
@@ -6,15 +6,14 @@
* This file contains routines to check for non-fatal MCEs every 15s
*
*/
-
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/jiffies.h>
-#include <linux/workqueue.h>
#include <linux/interrupt.h>
-#include <linux/smp.h>
+#include <linux/workqueue.h>
+#include <linux/jiffies.h>
+#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/smp.h>
#include <asm/processor.h>
#include <asm/system.h>
@@ -22,9 +21,9 @@
#include "mce.h"
-static int firstbank;
+static int firstbank;
-#define MCE_RATE 15*HZ /* timer rate is 15s */
+#define MCE_RATE (15*HZ) /* timer rate is 15s */
static void mce_checkregs(void *info)
{
@@ -34,23 +33,24 @@ static void mce_checkregs(void *info)
for (i = firstbank; i < nr_mce_banks; i++) {
rdmsr(MSR_IA32_MC0_STATUS+i*4, low, high);
- if (high & (1<<31)) {
- printk(KERN_INFO "MCE: The hardware reports a non "
- "fatal, correctable incident occurred on "
- "CPU %d.\n",
+ if (!(high & (1<<31)))
+ continue;
+
+ printk(KERN_INFO "MCE: The hardware reports a non fatal, "
+ "correctable incident occurred on CPU %d.\n",
smp_processor_id());
- printk(KERN_INFO "Bank %d: %08x%08x\n", i, high, low);
-
- /*
- * Scrub the error so we don't pick it up in MCE_RATE
- * seconds time.
- */
- wrmsr(MSR_IA32_MC0_STATUS+i*4, 0UL, 0UL);
-
- /* Serialize */
- wmb();
- add_taint(TAINT_MACHINE_CHECK);
- }
+
+ printk(KERN_INFO "Bank %d: %08x%08x\n", i, high, low);
+
+ /*
+ * Scrub the error so we don't pick it up in MCE_RATE
+ * seconds time:
+ */
+ wrmsr(MSR_IA32_MC0_STATUS+i*4, 0UL, 0UL);
+
+ /* Serialize: */
+ wmb();
+ add_taint(TAINT_MACHINE_CHECK);
}
}
@@ -77,16 +77,17 @@ static int __init init_nonfatal_mce_checker(void)
/* Some Athlons misbehave when we frob bank 0 */
if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD &&
- boot_cpu_data.x86 == 6)
- firstbank = 1;
+ boot_cpu_data.x86 == 6)
+ firstbank = 1;
else
- firstbank = 0;
+ firstbank = 0;
/*
* Check for non-fatal errors every MCE_RATE s
*/
schedule_delayed_work(&mce_work, round_jiffies_relative(MCE_RATE));
printk(KERN_INFO "Machine check exception polling timer started.\n");
+
return 0;
}
module_init(init_nonfatal_mce_checker);