cpu/mce/threshold.c

1 // SPDX-License-Identifier: GPL-2.0
3  * Common corrected MCE threshold handler code:
18 	pr_err("Unexpected threshold interrupt at vector %x\n",  in default_threshold_interrupt()
46 	storm->banks[bank].history = ~0ull;  in mce_inherit_storm()
47 	storm->banks[bank].timestamp = jiffies;  in mce_inherit_storm()
74 	storm->banks[bank].in_storm_mode = true;  in cmci_storm_begin()
80 	if (++storm->stormy_bank_count == 1)  in cmci_storm_begin()
89 	storm->banks[bank].history = 0;  in cmci_storm_end()
90 	storm->banks[bank].in_storm_mode = false;  in cmci_storm_end()
100 	unsigned long now = jiffies, delta;  in mce_track_storm()  local
105 	if (storm->banks[mce->bank].poll_only)  in mce_track_storm()
116 	if (!storm->banks[mce->bank].in_storm_mode) {  in mce_track_storm()
117 		delta = now - storm->banks[mce->bank].timestamp;  in mce_track_storm()
118 		shift = (delta + HZ) / HZ;  in mce_track_storm()
123 		history = storm->banks[mce->bank].history << shift;  in mce_track_storm()
125 	storm->banks[mce->bank].timestamp = now;  in mce_track_storm()
128 	if ((mce->status & MCI_STATUS_VAL) && mce_is_correctable(mce))  in mce_track_storm()
131 	storm->banks[mce->bank].history = history;  in mce_track_storm()
133 	if (storm->banks[mce->bank].in_storm_mode) {  in mce_track_storm()
136 		printk_deferred(KERN_NOTICE "CPU%d BANK%d CMCI storm subsided\n", smp_processor_id(), mce->bank);  in mce_track_storm()
137 		mce_handle_storm(mce->bank, false);  in mce_track_storm()
138 		cmci_storm_end(mce->bank);  in mce_track_storm()
142 		printk_deferred(KERN_NOTICE "CPU%d BANK%d CMCI storm detected\n", smp_processor_id(), mce->bank);  in mce_track_storm()
143 		mce_handle_storm(mce->bank, true);  in mce_track_storm()
144 		cmci_storm_begin(mce->bank);  in mce_track_storm()