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Diffstat (limited to 'arch/x86/kernel/cpu/mcheck/mce.c')
-rw-r--r--arch/x86/kernel/cpu/mcheck/mce.c57
1 files changed, 7 insertions, 50 deletions
diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index 537c6647d84c..8e9725c607ea 100644
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -128,7 +128,6 @@ void mce_setup(struct mce *m)
{
memset(m, 0, sizeof(struct mce));
m->cpu = m->extcpu = smp_processor_id();
- m->tsc = rdtsc();
/* We hope get_seconds stays lockless */
m->time = get_seconds();
m->cpuvendor = boot_cpu_data.x86_vendor;
@@ -217,9 +216,7 @@ void mce_register_decode_chain(struct notifier_block *nb)
{
atomic_inc(&num_notifiers);
- /* Ensure SRAO notifier has the highest priority in the decode chain. */
- if (nb != &mce_srao_nb && nb->priority == INT_MAX)
- nb->priority -= 1;
+ WARN_ON(nb->priority > MCE_PRIO_LOWEST && nb->priority < MCE_PRIO_EDAC);
atomic_notifier_chain_register(&x86_mce_decoder_chain, nb);
}
@@ -583,7 +580,7 @@ static int srao_decode_notifier(struct notifier_block *nb, unsigned long val,
}
static struct notifier_block mce_srao_nb = {
.notifier_call = srao_decode_notifier,
- .priority = INT_MAX,
+ .priority = MCE_PRIO_SRAO,
};
static int mce_default_notifier(struct notifier_block *nb, unsigned long val,
@@ -609,7 +606,7 @@ static int mce_default_notifier(struct notifier_block *nb, unsigned long val,
static struct notifier_block mce_default_nb = {
.notifier_call = mce_default_notifier,
/* lowest prio, we want it to run last. */
- .priority = 0,
+ .priority = MCE_PRIO_LOWEST,
};
/*
@@ -710,14 +707,8 @@ bool machine_check_poll(enum mcp_flags flags, mce_banks_t *b)
mce_gather_info(&m, NULL);
- /*
- * m.tsc was set in mce_setup(). Clear it if not requested.
- *
- * FIXME: Propagate @flags to mce_gather_info/mce_setup() to avoid
- * that dance.
- */
- if (!(flags & MCP_TIMESTAMP))
- m.tsc = 0;
+ if (flags & MCP_TIMESTAMP)
+ m.tsc = rdtsc();
for (i = 0; i < mca_cfg.banks; i++) {
if (!mce_banks[i].ctl || !test_bit(i, *b))
@@ -1156,6 +1147,7 @@ void do_machine_check(struct pt_regs *regs, long error_code)
goto out;
mce_gather_info(&m, regs);
+ m.tsc = rdtsc();
final = this_cpu_ptr(&mces_seen);
*final = m;
@@ -1322,41 +1314,6 @@ int memory_failure(unsigned long pfn, int vector, int flags)
#endif
/*
- * Action optional processing happens here (picking up
- * from the list of faulting pages that do_machine_check()
- * placed into the genpool).
- */
-static void mce_process_work(struct work_struct *dummy)
-{
- mce_gen_pool_process();
-}
-
-#ifdef CONFIG_X86_MCE_INTEL
-/***
- * mce_log_therm_throt_event - Logs the thermal throttling event to mcelog
- * @cpu: The CPU on which the event occurred.
- * @status: Event status information
- *
- * This function should be called by the thermal interrupt after the
- * event has been processed and the decision was made to log the event
- * further.
- *
- * The status parameter will be saved to the 'status' field of 'struct mce'
- * and historically has been the register value of the
- * MSR_IA32_THERMAL_STATUS (Intel) msr.
- */
-void mce_log_therm_throt_event(__u64 status)
-{
- struct mce m;
-
- mce_setup(&m);
- m.bank = MCE_THERMAL_BANK;
- m.status = status;
- mce_log(&m);
-}
-#endif /* CONFIG_X86_MCE_INTEL */
-
-/*
* Periodic polling timer for "silent" machine check errors. If the
* poller finds an MCE, poll 2x faster. When the poller finds no more
* errors, poll 2x slower (up to check_interval seconds).
@@ -2189,7 +2146,7 @@ int __init mcheck_init(void)
mce_register_decode_chain(&mce_default_nb);
mcheck_vendor_init_severity();
- INIT_WORK(&mce_work, mce_process_work);
+ INIT_WORK(&mce_work, mce_gen_pool_process);
init_irq_work(&mce_irq_work, mce_irq_work_cb);
return 0;