linux/arch/x86/kernel/cpu/mcheck/p4.c

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/*
* P4 specific Machine Check Exception Reporting
*/
#include <linux/init.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/interrupt.h>
#include <linux/smp.h>
#include <asm/processor.h>
#include <asm/system.h>
#include <asm/msr.h>
#include <asm/apic.h>
#include <asm/therm_throt.h>
#include "mce.h"
/* as supported by the P4/Xeon family */
struct intel_mce_extended_msrs {
u32 eax;
u32 ebx;
u32 ecx;
u32 edx;
u32 esi;
u32 edi;
u32 ebp;
u32 esp;
u32 eflags;
u32 eip;
/* u32 *reserved[]; */
};
static int mce_num_extended_msrs = 0;
#ifdef CONFIG_X86_MCE_P4THERMAL
static void unexpected_thermal_interrupt(struct pt_regs *regs)
{
printk(KERN_ERR "CPU%d: Unexpected LVT TMR interrupt!\n",
smp_processor_id());
add_taint(TAINT_MACHINE_CHECK);
}
/* P4/Xeon Thermal transition interrupt handler */
static void intel_thermal_interrupt(struct pt_regs *regs)
{
__u64 msr_val;
ack_APIC_irq();
rdmsrl(MSR_IA32_THERM_STATUS, msr_val);
therm_throt_process(msr_val & 0x1);
}
/* Thermal interrupt handler for this CPU setup */
static void (*vendor_thermal_interrupt)(struct pt_regs *regs) = unexpected_thermal_interrupt;
void smp_thermal_interrupt(struct pt_regs *regs)
{
irq_enter();
vendor_thermal_interrupt(regs);
x86: expand /proc/interrupts to include missing vectors, v2 Add missing IRQs and IRQ descriptions to /proc/interrupts. /proc/interrupts is most useful when it displays every IRQ vector in use by the system, not just those somebody thought would be interesting. This patch inserts the following vector displays to the i386 and x86_64 platforms, as appropriate: rescheduling interrupts TLB flush interrupts function call interrupts thermal event interrupts threshold interrupts spurious interrupts A threshold interrupt occurs when ECC memory correction is occuring at too high a frequency. Thresholds are used by the ECC hardware as occasional ECC failures are part of normal operation, but long sequences of ECC failures usually indicate a memory chip that is about to fail. Thermal event interrupts occur when a temperature threshold has been exceeded for some CPU chip. IIRC, a thermal interrupt is also generated when the temperature drops back to a normal level. A spurious interrupt is an interrupt that was raised then lowered by the device before it could be fully processed by the APIC. Hence the apic sees the interrupt but does not know what device it came from. For this case the APIC hardware will assume a vector of 0xff. Rescheduling, call, and TLB flush interrupts are sent from one CPU to another per the needs of the OS. Typically, their statistics would be used to discover if an interrupt flood of the given type has been occuring. AK: merged v2 and v4 which had some more tweaks AK: replace Local interrupts with Local timer interrupts AK: Fixed description of interrupt types. [ tglx: arch/x86 adaptation ] [ mingo: small cleanup ] Signed-off-by: Joe Korty <joe.korty@ccur.com> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Tim Hockin <thockin@hockin.org> Cc: Andi Kleen <ak@suse.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2007-10-17 16:04:40 +00:00
__get_cpu_var(irq_stat).irq_thermal_count++;
irq_exit();
}
/* P4/Xeon Thermal regulation detect and init */
static void intel_init_thermal(struct cpuinfo_x86 *c)
{
u32 l, h;
unsigned int cpu = smp_processor_id();
/* Thermal monitoring */
if (!cpu_has(c, X86_FEATURE_ACPI))
return; /* -ENODEV */
/* Clock modulation */
if (!cpu_has(c, X86_FEATURE_ACC))
return; /* -ENODEV */
/* first check if its enabled already, in which case there might
* be some SMM goo which handles it, so we can't even put a handler
* since it might be delivered via SMI already -zwanem.
*/
rdmsr (MSR_IA32_MISC_ENABLE, l, h);
h = apic_read(APIC_LVTTHMR);
if ((l & (1<<3)) && (h & APIC_DM_SMI)) {
printk(KERN_DEBUG "CPU%d: Thermal monitoring handled by SMI\n",
cpu);
return; /* -EBUSY */
}
/* check whether a vector already exists, temporarily masked? */
if (h & APIC_VECTOR_MASK) {
printk(KERN_DEBUG "CPU%d: Thermal LVT vector (%#x) already "
"installed\n",
cpu, (h & APIC_VECTOR_MASK));
return; /* -EBUSY */
}
/* The temperature transition interrupt handler setup */
h = THERMAL_APIC_VECTOR; /* our delivery vector */
h |= (APIC_DM_FIXED | APIC_LVT_MASKED); /* we'll mask till we're ready */
apic_write_around(APIC_LVTTHMR, h);
rdmsr (MSR_IA32_THERM_INTERRUPT, l, h);
wrmsr (MSR_IA32_THERM_INTERRUPT, l | 0x03 , h);
/* ok we're good to go... */
vendor_thermal_interrupt = intel_thermal_interrupt;
rdmsr (MSR_IA32_MISC_ENABLE, l, h);
wrmsr (MSR_IA32_MISC_ENABLE, l | (1<<3), h);
l = apic_read (APIC_LVTTHMR);
apic_write_around (APIC_LVTTHMR, l & ~APIC_LVT_MASKED);
printk (KERN_INFO "CPU%d: Thermal monitoring enabled\n", cpu);
/* enable thermal throttle processing */
atomic_set(&therm_throt_en, 1);
return;
}
#endif /* CONFIG_X86_MCE_P4THERMAL */
/* P4/Xeon Extended MCE MSR retrieval, return 0 if unsupported */
static inline void intel_get_extended_msrs(struct intel_mce_extended_msrs *r)
{
u32 h;
rdmsr (MSR_IA32_MCG_EAX, r->eax, h);
rdmsr (MSR_IA32_MCG_EBX, r->ebx, h);
rdmsr (MSR_IA32_MCG_ECX, r->ecx, h);
rdmsr (MSR_IA32_MCG_EDX, r->edx, h);
rdmsr (MSR_IA32_MCG_ESI, r->esi, h);
rdmsr (MSR_IA32_MCG_EDI, r->edi, h);
rdmsr (MSR_IA32_MCG_EBP, r->ebp, h);
rdmsr (MSR_IA32_MCG_ESP, r->esp, h);
rdmsr (MSR_IA32_MCG_EFLAGS, r->eflags, h);
rdmsr (MSR_IA32_MCG_EIP, r->eip, h);
}
static void intel_machine_check(struct pt_regs * regs, long error_code)
{
int recover=1;
u32 alow, ahigh, high, low;
u32 mcgstl, mcgsth;
int i;
rdmsr (MSR_IA32_MCG_STATUS, mcgstl, mcgsth);
if (mcgstl & (1<<0)) /* Recoverable ? */
recover=0;
x86: arch/x86/kernel/cpu/mcheck/ checkpatch fixes #40: FILE: arch/x86/kernel/cpu/mcheck/k7.c:46: + snprintf (misc, 20, "[%08x%08x]", ahigh, alow); WARNING: line over 80 characters #45: FILE: arch/x86/kernel/cpu/mcheck/k7.c:50: + snprintf (addr, 24, " at %08x%08x", ahigh, alow); WARNING: no space between function name and open parenthesis '(' #45: FILE: arch/x86/kernel/cpu/mcheck/k7.c:50: + snprintf (addr, 24, " at %08x%08x", ahigh, alow); WARNING: no space between function name and open parenthesis '(' #48: FILE: arch/x86/kernel/cpu/mcheck/k7.c:52: + printk (KERN_EMERG "CPU %d: Bank %d: %08x%08x%s%s\n", WARNING: no space between function name and open parenthesis '(' #65: FILE: arch/x86/kernel/cpu/mcheck/p4.c:161: + printk (KERN_DEBUG "CPU %d: EIP: %08x EFLAGS: %08x\n" WARNING: no space between function name and open parenthesis '(' #88: FILE: arch/x86/kernel/cpu/mcheck/p4.c:182: + snprintf (misc, 20, "[%08x%08x]", ahigh, alow); WARNING: line over 80 characters #93: FILE: arch/x86/kernel/cpu/mcheck/p4.c:186: + snprintf (addr, 24, " at %08x%08x", ahigh, alow); WARNING: no space between function name and open parenthesis '(' #93: FILE: arch/x86/kernel/cpu/mcheck/p4.c:186: + snprintf (addr, 24, " at %08x%08x", ahigh, alow); WARNING: no space between function name and open parenthesis '(' #96: FILE: arch/x86/kernel/cpu/mcheck/p4.c:188: + printk (KERN_EMERG "CPU %d: Bank %d: %08x%08x%s%s\n", WARNING: no space between function name and open parenthesis '(' #120: FILE: arch/x86/kernel/cpu/mcheck/p6.c:46: + snprintf (misc, 20, "[%08x%08x]", ahigh, alow); WARNING: line over 80 characters #125: FILE: arch/x86/kernel/cpu/mcheck/p6.c:50: + snprintf (addr, 24, " at %08x%08x", ahigh, alow); WARNING: no space between function name and open parenthesis '(' #125: FILE: arch/x86/kernel/cpu/mcheck/p6.c:50: + snprintf (addr, 24, " at %08x%08x", ahigh, alow); WARNING: no space between function name and open parenthesis '(' #128: FILE: arch/x86/kernel/cpu/mcheck/p6.c:52: + printk (KERN_EMERG "CPU %d: Bank %d: %08x%08x%s%s\n", total: 0 errors, 13 warnings, 100 lines checked Your patch has style problems, please review. If any of these errors are false positives report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Min Zhang <mzhang@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30 12:32:12 +00:00
printk(KERN_EMERG "CPU %d: Machine Check Exception: %08x%08x\n",
smp_processor_id(), mcgsth, mcgstl);
if (mce_num_extended_msrs > 0) {
struct intel_mce_extended_msrs dbg;
intel_get_extended_msrs(&dbg);
x86: arch/x86/kernel/cpu/mcheck/ checkpatch fixes #40: FILE: arch/x86/kernel/cpu/mcheck/k7.c:46: + snprintf (misc, 20, "[%08x%08x]", ahigh, alow); WARNING: line over 80 characters #45: FILE: arch/x86/kernel/cpu/mcheck/k7.c:50: + snprintf (addr, 24, " at %08x%08x", ahigh, alow); WARNING: no space between function name and open parenthesis '(' #45: FILE: arch/x86/kernel/cpu/mcheck/k7.c:50: + snprintf (addr, 24, " at %08x%08x", ahigh, alow); WARNING: no space between function name and open parenthesis '(' #48: FILE: arch/x86/kernel/cpu/mcheck/k7.c:52: + printk (KERN_EMERG "CPU %d: Bank %d: %08x%08x%s%s\n", WARNING: no space between function name and open parenthesis '(' #65: FILE: arch/x86/kernel/cpu/mcheck/p4.c:161: + printk (KERN_DEBUG "CPU %d: EIP: %08x EFLAGS: %08x\n" WARNING: no space between function name and open parenthesis '(' #88: FILE: arch/x86/kernel/cpu/mcheck/p4.c:182: + snprintf (misc, 20, "[%08x%08x]", ahigh, alow); WARNING: line over 80 characters #93: FILE: arch/x86/kernel/cpu/mcheck/p4.c:186: + snprintf (addr, 24, " at %08x%08x", ahigh, alow); WARNING: no space between function name and open parenthesis '(' #93: FILE: arch/x86/kernel/cpu/mcheck/p4.c:186: + snprintf (addr, 24, " at %08x%08x", ahigh, alow); WARNING: no space between function name and open parenthesis '(' #96: FILE: arch/x86/kernel/cpu/mcheck/p4.c:188: + printk (KERN_EMERG "CPU %d: Bank %d: %08x%08x%s%s\n", WARNING: no space between function name and open parenthesis '(' #120: FILE: arch/x86/kernel/cpu/mcheck/p6.c:46: + snprintf (misc, 20, "[%08x%08x]", ahigh, alow); WARNING: line over 80 characters #125: FILE: arch/x86/kernel/cpu/mcheck/p6.c:50: + snprintf (addr, 24, " at %08x%08x", ahigh, alow); WARNING: no space between function name and open parenthesis '(' #125: FILE: arch/x86/kernel/cpu/mcheck/p6.c:50: + snprintf (addr, 24, " at %08x%08x", ahigh, alow); WARNING: no space between function name and open parenthesis '(' #128: FILE: arch/x86/kernel/cpu/mcheck/p6.c:52: + printk (KERN_EMERG "CPU %d: Bank %d: %08x%08x%s%s\n", total: 0 errors, 13 warnings, 100 lines checked Your patch has style problems, please review. If any of these errors are false positives report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Min Zhang <mzhang@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30 12:32:12 +00:00
printk(KERN_DEBUG "CPU %d: EIP: %08x EFLAGS: %08x\n"
"\teax: %08x ebx: %08x ecx: %08x edx: %08x\n"
"\tesi: %08x edi: %08x ebp: %08x esp: %08x\n",
smp_processor_id(), dbg.eip, dbg.eflags,
dbg.eax, dbg.ebx, dbg.ecx, dbg.edx,
dbg.esi, dbg.edi, dbg.ebp, dbg.esp);
}
x86: arch/x86/kernel/cpu/mcheck/ checkpatch fixes #40: FILE: arch/x86/kernel/cpu/mcheck/k7.c:46: + snprintf (misc, 20, "[%08x%08x]", ahigh, alow); WARNING: line over 80 characters #45: FILE: arch/x86/kernel/cpu/mcheck/k7.c:50: + snprintf (addr, 24, " at %08x%08x", ahigh, alow); WARNING: no space between function name and open parenthesis '(' #45: FILE: arch/x86/kernel/cpu/mcheck/k7.c:50: + snprintf (addr, 24, " at %08x%08x", ahigh, alow); WARNING: no space between function name and open parenthesis '(' #48: FILE: arch/x86/kernel/cpu/mcheck/k7.c:52: + printk (KERN_EMERG "CPU %d: Bank %d: %08x%08x%s%s\n", WARNING: no space between function name and open parenthesis '(' #65: FILE: arch/x86/kernel/cpu/mcheck/p4.c:161: + printk (KERN_DEBUG "CPU %d: EIP: %08x EFLAGS: %08x\n" WARNING: no space between function name and open parenthesis '(' #88: FILE: arch/x86/kernel/cpu/mcheck/p4.c:182: + snprintf (misc, 20, "[%08x%08x]", ahigh, alow); WARNING: line over 80 characters #93: FILE: arch/x86/kernel/cpu/mcheck/p4.c:186: + snprintf (addr, 24, " at %08x%08x", ahigh, alow); WARNING: no space between function name and open parenthesis '(' #93: FILE: arch/x86/kernel/cpu/mcheck/p4.c:186: + snprintf (addr, 24, " at %08x%08x", ahigh, alow); WARNING: no space between function name and open parenthesis '(' #96: FILE: arch/x86/kernel/cpu/mcheck/p4.c:188: + printk (KERN_EMERG "CPU %d: Bank %d: %08x%08x%s%s\n", WARNING: no space between function name and open parenthesis '(' #120: FILE: arch/x86/kernel/cpu/mcheck/p6.c:46: + snprintf (misc, 20, "[%08x%08x]", ahigh, alow); WARNING: line over 80 characters #125: FILE: arch/x86/kernel/cpu/mcheck/p6.c:50: + snprintf (addr, 24, " at %08x%08x", ahigh, alow); WARNING: no space between function name and open parenthesis '(' #125: FILE: arch/x86/kernel/cpu/mcheck/p6.c:50: + snprintf (addr, 24, " at %08x%08x", ahigh, alow); WARNING: no space between function name and open parenthesis '(' #128: FILE: arch/x86/kernel/cpu/mcheck/p6.c:52: + printk (KERN_EMERG "CPU %d: Bank %d: %08x%08x%s%s\n", total: 0 errors, 13 warnings, 100 lines checked Your patch has style problems, please review. If any of these errors are false positives report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Min Zhang <mzhang@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30 12:32:12 +00:00
for (i = 0; i < nr_mce_banks; i++) {
rdmsr(MSR_IA32_MC0_STATUS+i*4, low, high);
if (high & (1<<31)) {
char misc[20];
char addr[24];
misc[0] = addr[0] = '\0';
if (high & (1<<29))
recover |= 1;
if (high & (1<<25))
recover |= 2;
high &= ~(1<<31);
if (high & (1<<27)) {
x86: arch/x86/kernel/cpu/mcheck/ checkpatch fixes #40: FILE: arch/x86/kernel/cpu/mcheck/k7.c:46: + snprintf (misc, 20, "[%08x%08x]", ahigh, alow); WARNING: line over 80 characters #45: FILE: arch/x86/kernel/cpu/mcheck/k7.c:50: + snprintf (addr, 24, " at %08x%08x", ahigh, alow); WARNING: no space between function name and open parenthesis '(' #45: FILE: arch/x86/kernel/cpu/mcheck/k7.c:50: + snprintf (addr, 24, " at %08x%08x", ahigh, alow); WARNING: no space between function name and open parenthesis '(' #48: FILE: arch/x86/kernel/cpu/mcheck/k7.c:52: + printk (KERN_EMERG "CPU %d: Bank %d: %08x%08x%s%s\n", WARNING: no space between function name and open parenthesis '(' #65: FILE: arch/x86/kernel/cpu/mcheck/p4.c:161: + printk (KERN_DEBUG "CPU %d: EIP: %08x EFLAGS: %08x\n" WARNING: no space between function name and open parenthesis '(' #88: FILE: arch/x86/kernel/cpu/mcheck/p4.c:182: + snprintf (misc, 20, "[%08x%08x]", ahigh, alow); WARNING: line over 80 characters #93: FILE: arch/x86/kernel/cpu/mcheck/p4.c:186: + snprintf (addr, 24, " at %08x%08x", ahigh, alow); WARNING: no space between function name and open parenthesis '(' #93: FILE: arch/x86/kernel/cpu/mcheck/p4.c:186: + snprintf (addr, 24, " at %08x%08x", ahigh, alow); WARNING: no space between function name and open parenthesis '(' #96: FILE: arch/x86/kernel/cpu/mcheck/p4.c:188: + printk (KERN_EMERG "CPU %d: Bank %d: %08x%08x%s%s\n", WARNING: no space between function name and open parenthesis '(' #120: FILE: arch/x86/kernel/cpu/mcheck/p6.c:46: + snprintf (misc, 20, "[%08x%08x]", ahigh, alow); WARNING: line over 80 characters #125: FILE: arch/x86/kernel/cpu/mcheck/p6.c:50: + snprintf (addr, 24, " at %08x%08x", ahigh, alow); WARNING: no space between function name and open parenthesis '(' #125: FILE: arch/x86/kernel/cpu/mcheck/p6.c:50: + snprintf (addr, 24, " at %08x%08x", ahigh, alow); WARNING: no space between function name and open parenthesis '(' #128: FILE: arch/x86/kernel/cpu/mcheck/p6.c:52: + printk (KERN_EMERG "CPU %d: Bank %d: %08x%08x%s%s\n", total: 0 errors, 13 warnings, 100 lines checked Your patch has style problems, please review. If any of these errors are false positives report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Min Zhang <mzhang@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30 12:32:12 +00:00
rdmsr(MSR_IA32_MC0_MISC+i*4, alow, ahigh);
snprintf(misc, 20, "[%08x%08x]", ahigh, alow);
}
if (high & (1<<26)) {
x86: arch/x86/kernel/cpu/mcheck/ checkpatch fixes #40: FILE: arch/x86/kernel/cpu/mcheck/k7.c:46: + snprintf (misc, 20, "[%08x%08x]", ahigh, alow); WARNING: line over 80 characters #45: FILE: arch/x86/kernel/cpu/mcheck/k7.c:50: + snprintf (addr, 24, " at %08x%08x", ahigh, alow); WARNING: no space between function name and open parenthesis '(' #45: FILE: arch/x86/kernel/cpu/mcheck/k7.c:50: + snprintf (addr, 24, " at %08x%08x", ahigh, alow); WARNING: no space between function name and open parenthesis '(' #48: FILE: arch/x86/kernel/cpu/mcheck/k7.c:52: + printk (KERN_EMERG "CPU %d: Bank %d: %08x%08x%s%s\n", WARNING: no space between function name and open parenthesis '(' #65: FILE: arch/x86/kernel/cpu/mcheck/p4.c:161: + printk (KERN_DEBUG "CPU %d: EIP: %08x EFLAGS: %08x\n" WARNING: no space between function name and open parenthesis '(' #88: FILE: arch/x86/kernel/cpu/mcheck/p4.c:182: + snprintf (misc, 20, "[%08x%08x]", ahigh, alow); WARNING: line over 80 characters #93: FILE: arch/x86/kernel/cpu/mcheck/p4.c:186: + snprintf (addr, 24, " at %08x%08x", ahigh, alow); WARNING: no space between function name and open parenthesis '(' #93: FILE: arch/x86/kernel/cpu/mcheck/p4.c:186: + snprintf (addr, 24, " at %08x%08x", ahigh, alow); WARNING: no space between function name and open parenthesis '(' #96: FILE: arch/x86/kernel/cpu/mcheck/p4.c:188: + printk (KERN_EMERG "CPU %d: Bank %d: %08x%08x%s%s\n", WARNING: no space between function name and open parenthesis '(' #120: FILE: arch/x86/kernel/cpu/mcheck/p6.c:46: + snprintf (misc, 20, "[%08x%08x]", ahigh, alow); WARNING: line over 80 characters #125: FILE: arch/x86/kernel/cpu/mcheck/p6.c:50: + snprintf (addr, 24, " at %08x%08x", ahigh, alow); WARNING: no space between function name and open parenthesis '(' #125: FILE: arch/x86/kernel/cpu/mcheck/p6.c:50: + snprintf (addr, 24, " at %08x%08x", ahigh, alow); WARNING: no space between function name and open parenthesis '(' #128: FILE: arch/x86/kernel/cpu/mcheck/p6.c:52: + printk (KERN_EMERG "CPU %d: Bank %d: %08x%08x%s%s\n", total: 0 errors, 13 warnings, 100 lines checked Your patch has style problems, please review. If any of these errors are false positives report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Min Zhang <mzhang@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30 12:32:12 +00:00
rdmsr(MSR_IA32_MC0_ADDR+i*4, alow, ahigh);
snprintf(addr, 24, " at %08x%08x", ahigh, alow);
}
x86: arch/x86/kernel/cpu/mcheck/ checkpatch fixes #40: FILE: arch/x86/kernel/cpu/mcheck/k7.c:46: + snprintf (misc, 20, "[%08x%08x]", ahigh, alow); WARNING: line over 80 characters #45: FILE: arch/x86/kernel/cpu/mcheck/k7.c:50: + snprintf (addr, 24, " at %08x%08x", ahigh, alow); WARNING: no space between function name and open parenthesis '(' #45: FILE: arch/x86/kernel/cpu/mcheck/k7.c:50: + snprintf (addr, 24, " at %08x%08x", ahigh, alow); WARNING: no space between function name and open parenthesis '(' #48: FILE: arch/x86/kernel/cpu/mcheck/k7.c:52: + printk (KERN_EMERG "CPU %d: Bank %d: %08x%08x%s%s\n", WARNING: no space between function name and open parenthesis '(' #65: FILE: arch/x86/kernel/cpu/mcheck/p4.c:161: + printk (KERN_DEBUG "CPU %d: EIP: %08x EFLAGS: %08x\n" WARNING: no space between function name and open parenthesis '(' #88: FILE: arch/x86/kernel/cpu/mcheck/p4.c:182: + snprintf (misc, 20, "[%08x%08x]", ahigh, alow); WARNING: line over 80 characters #93: FILE: arch/x86/kernel/cpu/mcheck/p4.c:186: + snprintf (addr, 24, " at %08x%08x", ahigh, alow); WARNING: no space between function name and open parenthesis '(' #93: FILE: arch/x86/kernel/cpu/mcheck/p4.c:186: + snprintf (addr, 24, " at %08x%08x", ahigh, alow); WARNING: no space between function name and open parenthesis '(' #96: FILE: arch/x86/kernel/cpu/mcheck/p4.c:188: + printk (KERN_EMERG "CPU %d: Bank %d: %08x%08x%s%s\n", WARNING: no space between function name and open parenthesis '(' #120: FILE: arch/x86/kernel/cpu/mcheck/p6.c:46: + snprintf (misc, 20, "[%08x%08x]", ahigh, alow); WARNING: line over 80 characters #125: FILE: arch/x86/kernel/cpu/mcheck/p6.c:50: + snprintf (addr, 24, " at %08x%08x", ahigh, alow); WARNING: no space between function name and open parenthesis '(' #125: FILE: arch/x86/kernel/cpu/mcheck/p6.c:50: + snprintf (addr, 24, " at %08x%08x", ahigh, alow); WARNING: no space between function name and open parenthesis '(' #128: FILE: arch/x86/kernel/cpu/mcheck/p6.c:52: + printk (KERN_EMERG "CPU %d: Bank %d: %08x%08x%s%s\n", total: 0 errors, 13 warnings, 100 lines checked Your patch has style problems, please review. If any of these errors are false positives report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Min Zhang <mzhang@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30 12:32:12 +00:00
printk(KERN_EMERG "CPU %d: Bank %d: %08x%08x%s%s\n",
smp_processor_id(), i, high, low, misc, addr);
}
}
if (recover & 2)
panic ("CPU context corrupt");
if (recover & 1)
panic ("Unable to continue");
printk(KERN_EMERG "Attempting to continue.\n");
/*
* Do not clear the MSR_IA32_MCi_STATUS if the error is not
* recoverable/continuable.This will allow BIOS to look at the MSRs
* for errors if the OS could not log the error.
*/
for (i=0; i<nr_mce_banks; i++) {
u32 msr;
msr = MSR_IA32_MC0_STATUS+i*4;
rdmsr (msr, low, high);
if (high&(1<<31)) {
/* Clear it */
wrmsr(msr, 0UL, 0UL);
/* Serialize */
wmb();
add_taint(TAINT_MACHINE_CHECK);
}
}
mcgstl &= ~(1<<2);
wrmsr (MSR_IA32_MCG_STATUS,mcgstl, mcgsth);
}
void intel_p4_mcheck_init(struct cpuinfo_x86 *c)
{
u32 l, h;
int i;
machine_check_vector = intel_machine_check;
wmb();
printk (KERN_INFO "Intel machine check architecture supported.\n");
rdmsr (MSR_IA32_MCG_CAP, l, h);
if (l & (1<<8)) /* Control register present ? */
wrmsr (MSR_IA32_MCG_CTL, 0xffffffff, 0xffffffff);
nr_mce_banks = l & 0xff;
for (i=0; i<nr_mce_banks; i++) {
wrmsr (MSR_IA32_MC0_CTL+4*i, 0xffffffff, 0xffffffff);
wrmsr (MSR_IA32_MC0_STATUS+4*i, 0x0, 0x0);
}
set_in_cr4 (X86_CR4_MCE);
printk (KERN_INFO "Intel machine check reporting enabled on CPU#%d.\n",
smp_processor_id());
/* Check for P4/Xeon extended MCE MSRs */
rdmsr (MSR_IA32_MCG_CAP, l, h);
if (l & (1<<9)) {/* MCG_EXT_P */
mce_num_extended_msrs = (l >> 16) & 0xff;
printk (KERN_INFO "CPU%d: Intel P4/Xeon Extended MCE MSRs (%d)"
" available\n",
smp_processor_id(), mce_num_extended_msrs);
#ifdef CONFIG_X86_MCE_P4THERMAL
/* Check for P4/Xeon Thermal monitor */
intel_init_thermal(c);
#endif
}
}