27  * Also supports reliable discovery of shared banks.
36  * some MCA banks are shared across cpus. When a cpu is offlined, cmci_clear()
37  * disables CMCI on all banks owned by the cpu and clears this bitfield. At
39  * taking ownership of some of the shared MCA banks that were previously
76 static int cmci_supported(int *banks)  in cmci_supported()  argument
95 	*banks = min_t(unsigned, MAX_NR_BANKS, cap & 0xff);  in cmci_supported()
263  * Enable CMCI (Corrected Machine Check Interrupt) for available MCE banks
265  * banks.
267 static void cmci_discover(int banks)  in cmci_discover()  argument
275 	for (i = 0; i < banks; i++) {  in cmci_discover()
282 		/* Skip banks in firmware first mode */  in cmci_discover()
317 			 * We are able to set thresholds for some banks that  in cmci_discover()
332 			"bios_cmci_threshold: Some banks do not have valid thresholds set\n");  in cmci_discover()
340  * all the CMCI owned banks.
345 	int banks;  in cmci_recheck()  local
347 	if (!mce_available(raw_cpu_ptr(&cpu_info)) || !cmci_supported(&banks))  in cmci_recheck()
369  * Disable CMCI on this CPU for all banks it owns when it goes down.
370  * This allows other CPUs to claim the banks on rediscovery.
376 	int banks;  in cmci_clear()  local
378 	if (!cmci_supported(&banks))  in cmci_clear()
381 	for (i = 0; i < banks; i++)  in cmci_clear()
388 	int banks;  in cmci_rediscover_work_func()  local
390 	/* Recheck banks in case CPUs don't all have the same */  in cmci_rediscover_work_func()
391 	if (cmci_supported(&banks))  in cmci_rediscover_work_func()
392 		cmci_discover(banks);  in cmci_rediscover_work_func()
398 	int banks;  in cmci_rediscover()  local
400 	if (!cmci_supported(&banks))  in cmci_rediscover()
411 	int banks;  in cmci_reenable()  local
412 	if (cmci_supported(&banks))  in cmci_reenable()
413 		cmci_discover(banks);  in cmci_reenable()
418 	int banks;  in cmci_disable_bank()  local
421 	if (!cmci_supported(&banks))  in cmci_disable_bank()
431 	int banks;  in intel_init_cmci()  local
433 	if (!cmci_supported(&banks))  in intel_init_cmci()
437 	cmci_discover(banks);  in intel_init_cmci()
441 	 * check for the banks later for CPU #0 just to make sure  in intel_init_cmci()