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
78 static int cmci_supported(int *banks)  in cmci_supported()  argument
97 	*banks = min_t(unsigned, MAX_NR_BANKS, cap & 0xff);  in cmci_supported()
182 	/* Skip banks in firmware first mode */  in cmci_skip_bank()
240 		storm->banks[bank].poll_only = true;  in cmci_claim_bank()
256 	 * We are able to set thresholds for some banks that  in cmci_claim_bank()
271  * Enable CMCI (Corrected Machine Check Interrupt) for available MCE banks
273  * banks. Called during initial bootstrap, and also for hotplug CPU operations
274  * to rediscover/reassign machine check banks.
276 static void cmci_discover(int banks)  in cmci_discover()  argument
283 	for (i = 0; i < banks; i++) {  in cmci_discover()
296 			"bios_cmci_threshold: Some banks do not have valid thresholds set\n");  in cmci_discover()
304  * all the CMCI owned banks.
309 	int banks;  in cmci_recheck()  local
311 	if (!mce_available(raw_cpu_ptr(&cpu_info)) || !cmci_supported(&banks))  in cmci_recheck()
336  * Disable CMCI on this CPU for all banks it owns when it goes down.
337  * This allows other CPUs to claim the banks on rediscovery.
343 	int banks;  in cmci_clear()  local
345 	if (!cmci_supported(&banks))  in cmci_clear()
348 	for (i = 0; i < banks; i++)  in cmci_clear()
355 	int banks;  in cmci_rediscover_work_func()  local
357 	/* Recheck banks in case CPUs don't all have the same */  in cmci_rediscover_work_func()
358 	if (cmci_supported(&banks))  in cmci_rediscover_work_func()
359 		cmci_discover(banks);  in cmci_rediscover_work_func()
365 	int banks;  in cmci_rediscover()  local
367 	if (!cmci_supported(&banks))  in cmci_rediscover()
378 	int banks;  in cmci_reenable()  local
379 	if (cmci_supported(&banks))  in cmci_reenable()
380 		cmci_discover(banks);  in cmci_reenable()
385 	int banks;  in cmci_disable_bank()  local
388 	if (!cmci_supported(&banks))  in cmci_disable_bank()
406 	int banks;  in intel_init_cmci()  local
408 	if (!cmci_supported(&banks)) {  in intel_init_cmci()
414 	cmci_discover(banks);  in intel_init_cmci()
418 	 * check for the banks later for CPU #0 just to make sure  in intel_init_cmci()