Merge branches 'x86/mce' and 'x86/urgent' into perf/mce
Merge reason: Put all MCE changes into this branch, we are queueing up a dependent patch. Signed-off-by: Ingo Molnar <mingo@elte.hu>
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@@ -88,18 +88,26 @@ static DECLARE_WAIT_QUEUE_HEAD(mce_wait);
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static DEFINE_PER_CPU(struct mce, mces_seen);
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static int cpu_missing;
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static void default_decode_mce(struct mce *m)
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/*
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* CPU/chipset specific EDAC code can register a notifier call here to print
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* MCE errors in a human-readable form.
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*/
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ATOMIC_NOTIFIER_HEAD(x86_mce_decoder_chain);
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EXPORT_SYMBOL_GPL(x86_mce_decoder_chain);
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static int default_decode_mce(struct notifier_block *nb, unsigned long val,
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void *data)
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{
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pr_emerg("No human readable MCE decoding support on this CPU type.\n");
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pr_emerg("Run the message through 'mcelog --ascii' to decode.\n");
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return NOTIFY_STOP;
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}
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/*
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* CPU/chipset specific EDAC code can register a callback here to print
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* MCE errors in a human-readable form:
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*/
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void (*x86_mce_decode_callback)(struct mce *m) = default_decode_mce;
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EXPORT_SYMBOL(x86_mce_decode_callback);
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static struct notifier_block mce_dec_nb = {
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.notifier_call = default_decode_mce,
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.priority = -1,
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};
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/* MCA banks polled by the period polling timer for corrected events */
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DEFINE_PER_CPU(mce_banks_t, mce_poll_banks) = {
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@@ -210,9 +218,9 @@ static void print_mce(struct mce *m)
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/*
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* Print out human-readable details about the MCE error,
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* (if the CPU has an implementation for that):
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* (if the CPU has an implementation for that)
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*/
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x86_mce_decode_callback(m);
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atomic_notifier_call_chain(&x86_mce_decoder_chain, 0, m);
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}
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static void print_mce_head(void)
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@@ -1220,7 +1228,8 @@ static int __cpuinit mce_cap_init(void)
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rdmsrl(MSR_IA32_MCG_CAP, cap);
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b = cap & MCG_BANKCNT_MASK;
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printk(KERN_INFO "mce: CPU supports %d MCE banks\n", b);
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if (!banks)
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printk(KERN_INFO "mce: CPU supports %d MCE banks\n", b);
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if (b > MAX_NR_BANKS) {
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printk(KERN_WARNING
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@@ -1426,6 +1435,9 @@ void __cpuinit mcheck_init(struct cpuinfo_x86 *c)
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mce_cpu_features(c);
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mce_init_timer();
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INIT_WORK(&__get_cpu_var(mce_work), mce_process_work);
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if (raw_smp_processor_id() == 0)
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atomic_notifier_chain_register(&x86_mce_decoder_chain, &mce_dec_nb);
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}
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/*
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