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Diffstat (limited to 'arch/x86_64/kernel/mce_intel.c')
-rw-r--r--arch/x86_64/kernel/mce_intel.c99
1 files changed, 0 insertions, 99 deletions
diff --git a/arch/x86_64/kernel/mce_intel.c b/arch/x86_64/kernel/mce_intel.c
deleted file mode 100644
index 0be0a795981..00000000000
--- a/arch/x86_64/kernel/mce_intel.c
+++ /dev/null
@@ -1,99 +0,0 @@
-/*
- * Intel specific MCE features.
- * Copyright 2004 Zwane Mwaikambo <zwane@linuxpower.ca>
- */
-
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/percpu.h>
-#include <asm/processor.h>
-#include <asm/msr.h>
-#include <asm/mce.h>
-#include <asm/hw_irq.h>
-
-static DEFINE_PER_CPU(unsigned long, next_check);
-
-asmlinkage void smp_thermal_interrupt(void)
-{
- struct mce m;
-
- ack_APIC_irq();
-
- irq_enter();
- if (time_before(jiffies, __get_cpu_var(next_check)))
- goto done;
-
- __get_cpu_var(next_check) = jiffies + HZ*300;
- memset(&m, 0, sizeof(m));
- m.cpu = smp_processor_id();
- m.bank = MCE_THERMAL_BANK;
- rdtscll(m.tsc);
- rdmsrl(MSR_IA32_THERM_STATUS, m.status);
- if (m.status & 0x1) {
- printk(KERN_EMERG
- "CPU%d: Temperature above threshold, cpu clock throttled\n", m.cpu);
- add_taint(TAINT_MACHINE_CHECK);
- } else {
- printk(KERN_EMERG "CPU%d: Temperature/speed normal\n", m.cpu);
- }
-
- mce_log(&m);
-done:
- irq_exit();
-}
-
-static void __cpuinit intel_init_thermal(struct cpuinfo_x86 *c)
-{
- u32 l, h;
- int tm2 = 0;
- unsigned int cpu = smp_processor_id();
-
- if (!cpu_has(c, X86_FEATURE_ACPI))
- return;
-
- if (!cpu_has(c, X86_FEATURE_ACC))
- return;
-
- /* first check if TM1 is already enabled by the BIOS, 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.
- */
- 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;
- }
-
- if (cpu_has(c, X86_FEATURE_TM2) && (l & (1 << 13)))
- tm2 = 1;
-
- if (h & APIC_VECTOR_MASK) {
- printk(KERN_DEBUG
- "CPU%d: Thermal LVT vector (%#x) already "
- "installed\n", cpu, (h & APIC_VECTOR_MASK));
- return;
- }
-
- h = THERMAL_APIC_VECTOR;
- h |= (APIC_DM_FIXED | APIC_LVT_MASKED);
- apic_write_around(APIC_LVTTHMR, h);
-
- rdmsr(MSR_IA32_THERM_INTERRUPT, l, h);
- wrmsr(MSR_IA32_THERM_INTERRUPT, l | 0x03, h);
-
- 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 (%s)\n",
- cpu, tm2 ? "TM2" : "TM1");
- return;
-}
-
-void __cpuinit mce_intel_feature_init(struct cpuinfo_x86 *c)
-{
- intel_init_thermal(c);
-}