int _kvm_kvatop(kvm_t *kd, u_long va, off_t *pa) { struct tte tte; off_t tte_off; u_long vpn; off_t pa_off; u_long pg_off; int rest; pg_off = va & PAGE_MASK; if (va >= VM_MIN_DIRECT_ADDRESS) pa_off = TLB_DIRECT_TO_PHYS(va) & ~PAGE_MASK; else { vpn = btop(va); tte_off = kd->vmst->vm_tsb_off + ((vpn & kd->vmst->vm_tsb_mask) << TTE_SHIFT); if (!_kvm_read_phys(kd, tte_off, &tte, sizeof(tte))) goto invalid; if (!tte_match(&tte, va)) goto invalid; pa_off = TTE_GET_PA(&tte); } rest = PAGE_SIZE - pg_off; pa_off = _kvm_find_off(kd->vmst, pa_off, rest); if (pa_off == KVM_OFF_NOTFOUND) goto invalid; *pa = pa_off + pg_off; return (rest); invalid: _kvm_err(kd, 0, "invalid address (%lx)", va); return (0); }
void uma_small_free(void *mem, int size, u_int8_t flags) { vm_page_t m; m = PHYS_TO_VM_PAGE(TLB_DIRECT_TO_PHYS((vm_offset_t)mem)); m->wire_count--; vm_page_free(m); atomic_subtract_int(&cnt.v_wire_count, 1); }