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Diffstat (limited to 'arch/x86/kernel/cpu/mcheck/p4.c')
-rw-r--r--arch/x86/kernel/cpu/mcheck/p4.c48
1 files changed, 1 insertions, 47 deletions
diff --git a/arch/x86/kernel/cpu/mcheck/p4.c b/arch/x86/kernel/cpu/mcheck/p4.c
index 82cee108a2d3..4482aea9aa2e 100644
--- a/arch/x86/kernel/cpu/mcheck/p4.c
+++ b/arch/x86/kernel/cpu/mcheck/p4.c
@@ -1,21 +1,15 @@
1/* 1/*
2 * P4 specific Machine Check Exception Reporting 2 * P4 specific Machine Check Exception Reporting
3 */ 3 */
4
5#include <linux/interrupt.h>
6#include <linux/kernel.h> 4#include <linux/kernel.h>
7#include <linux/types.h> 5#include <linux/types.h>
8#include <linux/init.h> 6#include <linux/init.h>
9#include <linux/smp.h> 7#include <linux/smp.h>
10 8
11#include <asm/therm_throt.h>
12#include <asm/processor.h> 9#include <asm/processor.h>
13#include <asm/system.h> 10#include <asm/mce.h>
14#include <asm/apic.h>
15#include <asm/msr.h> 11#include <asm/msr.h>
16 12
17#include "mce.h"
18
19/* as supported by the P4/Xeon family */ 13/* as supported by the P4/Xeon family */
20struct intel_mce_extended_msrs { 14struct intel_mce_extended_msrs {
21 u32 eax; 15 u32 eax;
@@ -33,46 +27,6 @@ struct intel_mce_extended_msrs {
33 27
34static int mce_num_extended_msrs; 28static int mce_num_extended_msrs;
35 29
36
37#ifdef CONFIG_X86_MCE_P4THERMAL
38
39static void unexpected_thermal_interrupt(struct pt_regs *regs)
40{
41 printk(KERN_ERR "CPU%d: Unexpected LVT TMR interrupt!\n",
42 smp_processor_id());
43 add_taint(TAINT_MACHINE_CHECK);
44}
45
46/* P4/Xeon Thermal transition interrupt handler: */
47static void intel_thermal_interrupt(struct pt_regs *regs)
48{
49 __u64 msr_val;
50
51 ack_APIC_irq();
52
53 rdmsrl(MSR_IA32_THERM_STATUS, msr_val);
54 therm_throt_process(msr_val & THERM_STATUS_PROCHOT);
55}
56
57/* Thermal interrupt handler for this CPU setup: */
58static void (*vendor_thermal_interrupt)(struct pt_regs *regs) =
59 unexpected_thermal_interrupt;
60
61void smp_thermal_interrupt(struct pt_regs *regs)
62{
63 irq_enter();
64 vendor_thermal_interrupt(regs);
65 __get_cpu_var(irq_stat).irq_thermal_count++;
66 irq_exit();
67}
68
69void intel_set_thermal_handler(void)
70{
71 vendor_thermal_interrupt = intel_thermal_interrupt;
72}
73
74#endif /* CONFIG_X86_MCE_P4THERMAL */
75
76/* P4/Xeon Extended MCE MSR retrieval, return 0 if unsupported */ 30/* P4/Xeon Extended MCE MSR retrieval, return 0 if unsupported */
77static void intel_get_extended_msrs(struct intel_mce_extended_msrs *r) 31static void intel_get_extended_msrs(struct intel_mce_extended_msrs *r)
78{ 32{