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
83 static int cmci_supported(int *banks)  in cmci_supported()  argument
102 	*banks = min_t(unsigned, MAX_NR_BANKS, cap & 0xff);  in cmci_supported()
270  * Enable CMCI (Corrected Machine Check Interrupt) for available MCE banks
272  * banks.
274 static void cmci_discover(int banks)  in cmci_discover()  argument
282 	for (i = 0; i < banks; i++) {  in cmci_discover()
289 		/* Skip banks in firmware first mode */  in cmci_discover()
324 			 * We are able to set thresholds for some banks that  in cmci_discover()
339 			"bios_cmci_threshold: Some banks do not have valid thresholds set\n");  in cmci_discover()
347  * all the CMCI owned banks.
352 	int banks;  in cmci_recheck()  local
354 	if (!mce_available(raw_cpu_ptr(&cpu_info)) || !cmci_supported(&banks))  in cmci_recheck()
376  * Disable CMCI on this CPU for all banks it owns when it goes down.
377  * This allows other CPUs to claim the banks on rediscovery.
383 	int banks;  in cmci_clear()  local
385 	if (!cmci_supported(&banks))  in cmci_clear()
388 	for (i = 0; i < banks; i++)  in cmci_clear()
395 	int banks;  in cmci_rediscover_work_func()  local
397 	/* Recheck banks in case CPUs don't all have the same */  in cmci_rediscover_work_func()
398 	if (cmci_supported(&banks))  in cmci_rediscover_work_func()
399 		cmci_discover(banks);  in cmci_rediscover_work_func()
405 	int banks;  in cmci_rediscover()  local
407 	if (!cmci_supported(&banks))  in cmci_rediscover()
418 	int banks;  in cmci_reenable()  local
419 	if (cmci_supported(&banks))  in cmci_reenable()
420 		cmci_discover(banks);  in cmci_reenable()
425 	int banks;  in cmci_disable_bank()  local
428 	if (!cmci_supported(&banks))  in cmci_disable_bank()
446 	int banks;  in intel_init_cmci()  local
448 	if (!cmci_supported(&banks)) {  in intel_init_cmci()
454 	cmci_discover(banks);  in intel_init_cmci()
458 	 * check for the banks later for CPU #0 just to make sure  in intel_init_cmci()