MCG_CAP_COUNT_MASK
if ((cap & MCG_CAP_COUNT_MASK) != AMD_MCA_BANK_COUNT) {
(u_longlong_t)cap & MCG_CAP_COUNT_MASK,
mca->gcpu_mca_nbanks = nbanks = cap & MCG_CAP_COUNT_MASK;
#define MCG_CAP_COUNT(cap) ((cap) & MCG_CAP_COUNT_MASK)