sfmmu_chgattr
static void sfmmu_chgattr(struct hat *, caddr_t, size_t, uint_t, int);
sfmmu_chgattr(hat, addr, len, attr, SFMMU_SETATTR);
sfmmu_chgattr(hat, addr, len, attr, SFMMU_CHGATTR);
sfmmu_chgattr(hat, addr, len, attr, SFMMU_CLRATTR);