PORTMAP_MAX_BITS
KASSERT(bit < PORTMAP_MAX_BITS);
KASSERT(bit < PORTMAP_MAX_BITS);
KASSERT(bit < PORTMAP_MAX_BITS);
#define PORTMAP_MASK (PORTMAP_MAX_BITS - 1)
#define PORTMAP_L0_WORDS (PORTMAP_MAX_BITS >> PORTMAP_L0_SHIFT)
((PORTMAP_MAX_BITS / PORTMAP_L0_WORDS) >> PORTMAP_L1_SHIFT)