summaryrefslogtreecommitdiffstats
path: root/arch/i386/kernel/cpu/mcheck/k7.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/i386/kernel/cpu/mcheck/k7.c')
-rw-r--r--arch/i386/kernel/cpu/mcheck/k7.c102
1 files changed, 0 insertions, 102 deletions
diff --git a/arch/i386/kernel/cpu/mcheck/k7.c b/arch/i386/kernel/cpu/mcheck/k7.c
deleted file mode 100644
index eef63e3630c..00000000000
--- a/arch/i386/kernel/cpu/mcheck/k7.c
+++ /dev/null
@@ -1,102 +0,0 @@
-/*
- * Athlon/Hammer specific Machine Check Exception Reporting
- * (C) Copyright 2002 Dave Jones <davej@codemonkey.org.uk>
- */
-
-#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 "mce.h"
-
-/* Machine Check Handler For AMD Athlon/Duron */
-static fastcall void k7_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;
-
- printk (KERN_EMERG "CPU %d: Machine Check Exception: %08x%08x\n",
- smp_processor_id(), mcgsth, mcgstl);
-
- for (i=1; i<nr_mce_banks; i++) {
- rdmsr (MSR_IA32_MC0_STATUS+i*4,low, high);
- if (high&(1<<31)) {
- if (high & (1<<29))
- recover |= 1;
- if (high & (1<<25))
- recover |= 2;
- printk (KERN_EMERG "Bank %d: %08x%08x", i, high, low);
- high &= ~(1<<31);
- if (high & (1<<27)) {
- rdmsr (MSR_IA32_MC0_MISC+i*4, alow, ahigh);
- printk ("[%08x%08x]", ahigh, alow);
- }
- if (high & (1<<26)) {
- rdmsr (MSR_IA32_MC0_ADDR+i*4, alow, ahigh);
- printk (" at %08x%08x", ahigh, alow);
- }
- printk ("\n");
- /* Clear it */
- wrmsr (MSR_IA32_MC0_STATUS+i*4, 0UL, 0UL);
- /* Serialize */
- wmb();
- add_taint(TAINT_MACHINE_CHECK);
- }
- }
-
- if (recover&2)
- panic ("CPU context corrupt");
- if (recover&1)
- panic ("Unable to continue");
- printk (KERN_EMERG "Attempting to continue.\n");
- mcgstl &= ~(1<<2);
- wrmsr (MSR_IA32_MCG_STATUS,mcgstl, mcgsth);
-}
-
-
-/* AMD K7 machine check is Intel like */
-void amd_mcheck_init(struct cpuinfo_x86 *c)
-{
- u32 l, h;
- int i;
-
- if (!cpu_has(c, X86_FEATURE_MCE))
- return;
-
- machine_check_vector = k7_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;
-
- /* Clear status for MC index 0 separately, we don't touch CTL,
- * as some K7 Athlons cause spurious MCEs when its enabled. */
- if (boot_cpu_data.x86 == 6) {
- wrmsr (MSR_IA32_MC0_STATUS, 0x0, 0x0);
- i = 1;
- } else
- i = 0;
- for (; 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());
-}