mirror of https://gitee.com/openkylin/linux.git
x86, mce: clean up p5.c
Make the coding style match that of the rest of the x86 arch code. [ Impact: cleanup ] Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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@ -2,11 +2,10 @@
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* P5 specific Machine Check Exception Reporting
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* (C) Copyright 2002 Alan Cox <alan@lxorguk.ukuu.org.uk>
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*/
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#include <linux/init.h>
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#include <linux/types.h>
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#include <linux/kernel.h>
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#include <linux/interrupt.h>
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/init.h>
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#include <linux/smp.h>
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#include <asm/processor.h>
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@ -15,39 +14,53 @@
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#include "mce.h"
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/* Machine check handler for Pentium class Intel */
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/* Machine check handler for Pentium class Intel CPUs: */
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static void pentium_machine_check(struct pt_regs *regs, long error_code)
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{
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u32 loaddr, hi, lotype;
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rdmsr(MSR_IA32_P5_MC_ADDR, loaddr, hi);
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rdmsr(MSR_IA32_P5_MC_TYPE, lotype, hi);
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printk(KERN_EMERG "CPU#%d: Machine Check Exception: 0x%8X (type 0x%8X).\n", smp_processor_id(), loaddr, lotype);
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if (lotype&(1<<5))
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printk(KERN_EMERG "CPU#%d: Possible thermal failure (CPU on fire ?).\n", smp_processor_id());
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printk(KERN_EMERG
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"CPU#%d: Machine Check Exception: 0x%8X (type 0x%8X).\n",
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smp_processor_id(), loaddr, lotype);
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if (lotype & (1<<5)) {
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printk(KERN_EMERG
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"CPU#%d: Possible thermal failure (CPU on fire ?).\n",
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smp_processor_id());
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}
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add_taint(TAINT_MACHINE_CHECK);
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}
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/* Set up machine check reporting for processors with Intel style MCE */
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/* Set up machine check reporting for processors with Intel style MCE: */
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void intel_p5_mcheck_init(struct cpuinfo_x86 *c)
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{
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u32 l, h;
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/*Check for MCE support */
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/* Check for MCE support: */
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if (!cpu_has(c, X86_FEATURE_MCE))
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return;
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/* Default P5 to off as its often misconnected */
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/* Default P5 to off as its often misconnected: */
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if (mce_disabled != -1)
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return;
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machine_check_vector = pentium_machine_check;
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/* Make sure the vector pointer is visible before we enable MCEs: */
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wmb();
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/* Read registers before enabling */
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/* Read registers before enabling: */
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rdmsr(MSR_IA32_P5_MC_ADDR, l, h);
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rdmsr(MSR_IA32_P5_MC_TYPE, l, h);
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printk(KERN_INFO "Intel old style machine check architecture supported.\n");
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printk(KERN_INFO
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"Intel old style machine check architecture supported.\n");
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/* Enable MCE */
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/* Enable MCE: */
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set_in_cr4(X86_CR4_MCE);
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printk(KERN_INFO "Intel old style machine check reporting enabled on CPU#%d.\n", smp_processor_id());
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printk(KERN_INFO
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"Intel old style machine check reporting enabled on CPU#%d.\n",
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smp_processor_id());
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}
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