Merge branch 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...

[karo-tx-linux.git] / arch / x86 / kernel / cpu / mcheck / mce.c

diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index 537c6647d84ca3e7cca771feb6c98bda94ef8c70..8e9725c607ea6acb7a91deed9b72b2c9a873803e 100644 (file)
--- 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;
@@ -1321,41 +1313,6 @@ 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
@@ -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;